Proportions and ratio Problem Solving

This week for maths I created a presentation with different types of  Proportions and Ratios problems.
Since it is the holidays and I still don't under stand Proportions and Ratios very well I decided to find some strategy on how to figure  out  Proportions and Ratio problems. First I got given some problems that had to be worked out. Then I found some stratigy's on how other people solve problems like mine. Once I got an idea on how to solve Proportions and ratios I tried it out myself. What I learnt from this is that in Proportions and ratios You have to use multiplication and division most of the time.