\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Emma is mixing ingredients for a special type of concrete. The table below shows the number of kilograms of cement (\(\textcolor{colordef}{x}\)) needed for a certain number of kilograms of concrete mix (\(\textcolor{colorprop}{y}\)).
Kilograms of cement (x) \(\textcolor{colordef}{1}\) \(\textcolor{colordef}{2}\) \(\textcolor{colordef}{3}\)
Kilograms of concrete mix (y) \(\textcolor{colorprop}{200}\) \(\textcolor{colorprop}{400}\) \(\textcolor{colorprop}{600}\)
Calculate the coefficient of proportionality.