Ellen is correct.
the largest string (the fattest) is the third string, not the fourth.
the chart shown is wrong for a soprano, concert, or tenor ukulele.
the fourth string is a G, it is a small string tuned an octive higher than shown..it sounds the same as when you play the second string at the third fret.

Ellen is correct.
the largest string (the fattest) is the third string, not the fourth.
the chart shown is wrong for a soprano, concert, or tenor ukulele.
the fourth string is a C, but it is a small string tuned an octive higher than shown..it sounds the same as when you play the second string at the third fret.

Do strings stretch beyond tuning on a new uke? Mine is soprano, does your chart work for it?

It's quite simple - tune the top string (the one closest to your chin when you hold it) to any note you like - but bear in mind if you don't tune it to exactly G or D or whichever tuning you are going for you may not be in tune with other instruments (in this case just get a G from another instrument and tune again starting from that note)

Once you are happy with the note on the 4th string (once again, the one closest to your chin when you hold it to play it) press the 5th fret on that string and play the note. Tune the 3rd string (the next one down) to match that note. If you play them together and they are the same note they should sound in harmony and should not clash (you might find if you are a tiny bit off it sounds a bit harsh). Once you have the next string tuned, fret the 4th fret on that string and play it. The 2nd string should match this note. Tune your 2nd string and then fret the 5th fret on that string and play it. The 1st string should match that et voila!

orale no entiendo ni papa a la verha! hahahah i don't get it

To tell a newbie uke player to "learn what an octave sounds like then do it" is at the least unhelpful and at the most a bit cruel, esp if this is their first musical instrument.

The posted tuning is guitar-type tuning. The standard uke tuning is what Guest posted...High G C E A

There is a very nice tutorial at

http://www.ukeschool.com/ukulele/tuning/ukul ele_tuning_1_e.html

as well as a set of very nice beginner lessons, all presented with a generosity of spirit : )

I don't understand the confusion here...?
The tuning described will work for any uke, as the relationship between the strings is always the same no matter what the actual notes are.
There are the same number of semitones separating each note, (to take the example from Terry above, the gap between D and G is the same as that between G and C), and so following the instructions will always tune the ukulele to itself no matter what note you start on.
Tuning the 4th and 3rd strings may be tricky as they are an octave apart (the instructions should really mention this for newbies like me; I tried to tune the 3rd string to the C above Middle C, wondering why it was a thicker string for a higher note! Duh!)
There's no trick to this, just careful listening and practise really.
Finally, my uke is baby pink, made in Chine, with a pink bag to match :-) so cute! (don't kill me....)
Have fun guys, hope you all get it sorted out! ;-) I can play 1 chord so far - C Major - 3rd fret 1st string!

This chart just explains how to keep all the strings of your uku tuned with each other. Tune your 4th (fat) string to the key you would like. Once that’s done, hold it down on the 5th fret and pick the third string open. Tune the third string to match the 4th string (make sure to keep finger on 4th string-5th fret while doing this). These two strings are now in tune with each other. Now you need to tune the 2nd string. Place your finger on the 3rd string, 4th fret and ring open the second string. Tune second string to match the tone of the 3rd string. The tab chart shown above is a good guide. Follow the chart to do the 1st string tuning. I hope this explains thing a little better.

Andy

I'm a little confused which string goes where. There are two thicker and two thinner style strings and the two thinner strings have either green or blue markers on them. I have looked up many sites to figure it out and cannot. I don't need to know how to tune just yet but more so how to string each one it the right spots.

This explanation is spot on.
It doesn't matter if this is for low G uke or not. If it's low G, it'll sound exactly the same note.
On a concert/soprano/high G tenor, the 5th fret G will sound exactly an octave higher than open 4th string. But it's the same note. To untrained ears though, it will sound like a different note, because it's so much higher.
Learn what an octave sounds like then do it.

very confusing

this is very useful thanks

These instructions are for LOW G tuning.