There are two kinds of proportion it is direct proportion and indirect proportion 
EXAMPLE of direct proportion problem is:
               Kristine was able to save $150 in 2 days. At this rate,
              how much money will she save in 5 days?
EXAMPLE of indirect proportion problem is:
                Four teachers can decorate a stage for a school program 
               in six hours. At the same rate,how many teachers are needed
               to finish decorating the stage in three hours?