Portland, Oregon is 4.2 times larger than Kent, Washington.
Area: 90 km2 calculated
Kent is a city located in King County, Washington, United States. It is the sixth largest city in the state and third largest in the county. Kent is in the heart of the Seattle-Tacoma metroplex, located 19 miles south of Seattle and 19 miles northeast of Tacoma. Wikipedia
Area: 376 km2 calculated
Portland is the largest city by population in the U.S. state of Oregon, near the confluence of the Willamette and Columbia rivers. Wikipedia