Home / 215,471.38-323,207.10-57,695.80

Finding the Fourth Proportional to 215,471.38, 323,207.10 and 57,695.80

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Solution

The fourth proportional to 215,471.38, 323,207.10 and 57,695.80 is: 86,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,471.38 : 323,207.10 = 57,695.80 : x
  2. Step 2: Convert to fraction form
    215,471.38/323,207.10 = 57,695.80/x
  3. Step 3: Cross multiply
    215,471.38x = 323,207.10 × 57,695.80
  4. Step 4: Simplify right side
    215,471.38x = 18,647,692,200.18
  5. Step 5: Solve for x
    x = 18,647,692,200.18/215,471.38
  6. Step 6: Final answer
    x = 86,543.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.