Home / 469-631.50

Finding the Third Proportional to 469 and 631.50

Calculator

Solution

The third proportional to 469 and 631.50 is: 850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    469 : 631.50 = 631.50 : x
  2. Step 2: Convert to fraction form
    469/631.50 = 631.50/x
  3. Step 3: Cross multiply
    469x = 631.50 × 631.50
  4. Step 4: Simplify right side
    469x = 398,792.25
  5. Step 5: Solve for x
    x = 398,792.25/469
  6. Step 6: Final answer
    x = 850.30

Related Problems

Find third proportional to 234.50 and 315.75
Half scale
Find third proportional to 938 and 1,263
Double scale
Find third proportional to 471 and 634
Similar ratio
Find third proportional to 703.50 and 947.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.