Question

I need to know the two properties of proportional relationship.

Answer 1

Have you looked up "proportional relationships" on the Internet? If not, pleast do that.
The commonest are "direct proportion" and "inverse proportion." It'd be worth your while to look them up

Answer 2

um..Okay I tried looking it up before I came here but I could not find it.

Answer 3

check out the following search results:

https://www.google.com/search?sourceid=chrome-psyapi2&ion=1&espv=2&es_th=1&ie=UTF-8&q=proportional%20relationship&oq=proportional%20relationship&aqs=chrome..69i57j0l5.4877j0j7

I'd be glad to help you, but do expect that you do something to help yourself also. Look through one or two of the resources listed as search results.