Home / 215,280-471,465

Finding the Third Proportional to 215,280 and 471,465

Calculator

Solution

The third proportional to 215,280 and 471,465 is: 1,032,512.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,280 : 471,465 = 471,465 : x
  2. Step 2: Convert to fraction form
    215,280/471,465 = 471,465/x
  3. Step 3: Cross multiply
    215,280x = 471,465 × 471,465
  4. Step 4: Simplify right side
    215,280x = 222,279,246,225
  5. Step 5: Solve for x
    x = 222,279,246,225/215,280
  6. Step 6: Final answer
    x = 1,032,512.29

Related Problems

Find third proportional to 107,640 and 235,732.50
Half scale
Find third proportional to 430,560 and 942,930
Double scale
Find third proportional to 215,282 and 471,469
Similar ratio
Find third proportional to 322,920 and 707,197.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.