So the pot is at about 100$ (before the raise) and he seems to have you covered from what you are saying. You should have about 130 left, so you have to put in 130 to win 230[edit]I forgot to count the villains call for 50$... disregard[/edit] (that's why I like to pick it apart like that - you can only win what you have in front of you, so you should calculate the pot size accordingly)
You can be pretty sure that he has at least a pair of kings - hopefully he doesn't have the nut flush draw.
So you only have 9 outs to make the best hand or about 35% (if you need it fast, you can multiply the outs by 4 and you get the approximate percentage for turn and river) - so you need pretty exactly 2:1... or 3:1 - this is where I'm not sure about the terminology. You can either say 1 part - what you invest - 2 parts what you get back not including your investment. This is how I do it because I think graphically.
I think the best lesson is to take pen and paper and try to figure it out yourself, so you really understand what's going on as opposed to just memorizing scenarios.