Finding the Third Proportional to 312 and 334.50
Calculator
Solution
The third proportional to 312 and 334.50 is: 358.62
Step by Step Solution
- Step 1: Write the proportion equation
312 : 334.50 = 334.50 : x - Step 2: Convert to fraction form
312/334.50 = 334.50/x - Step 3: Cross multiply
312x = 334.50 × 334.50 - Step 4: Simplify right side
312x = 111,890.25 - Step 5: Solve for x
x = 111,890.25/312 - Step 6: Final answer
x = 358.62
Related Problems
Find third proportional to 156 and 167.25
Half scale
Find third proportional to 624 and 669
Double scale
Find third proportional to 314 and 337
Similar ratio
Find third proportional to 468 and 501.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.