Both teams agreed to call it a day at tea, Victoria finishing on 4-199 with Matt Short (32) and Sam Harper (2) remaining not out.
Cam Gannon (2-39 off 23 overs) and young all-rounder Aaron Hardie (2-19 off 11) took two wickets apiece.
Gannon got the prized scalp of Will Pucovski (38) for his lowest score of the summer.
Pucovski, the leading run-scorer in the tournament with 495, was named player of the match for his first-innings double-century
WA have one win and three draws.
“I’m really proud of the boys’ effort over the last four days, especially today with the bowlers on such a flat wicket, WA captain Shaun Marsh said.
“Lots of really good efforts individually, we probably would have loved another win along the way, but can’t fault the team’s efforts over the last five weeks and hopefully that will put us in good stead for the second half of the tournament.
“We have really enjoyed the Adelaide hub, we really gelled together as a group. It’s been a great five weeks and I think everyone is looking forward to heading home to be with their families and recharge the batteries before the Big Bash.”