Make sure you recognize which form of the conversion factor you need to use. If you have chosen the correct form the units will cancel as they have here. If the problem had asked you to convert from kg to pounds, you can either break the problem up as we have here, or use both of the conversion factors at the same time. The workshop leaders will go over doing problems in that manner with you. Proportionality Constants vs. Conversion Factors Proportionality constants describe the relationship between two different quantities.
Conversion factors allow one quantity to be expressed on more than one scale of measurement.
Conversion factors always equal 1. Once a rate is fixed, it is used as a proportionality constant is used, to define the relationship between two quantities. The vertices can be matched so that corresponding angles are congruent and the lengths of corresponding sides are proportional . The slope is a rate of change. It is the amount of change of one variable divided by the amount of change of the other variable.