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Finding the Fourth Proportional to 521,050.32, 781,575.08 and 147,073.32

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Solution

The fourth proportional to 521,050.32, 781,575.08 and 147,073.32 is: 220,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,050.32 : 781,575.08 = 147,073.32 : x
  2. Step 2: Convert to fraction form
    521,050.32/781,575.08 = 147,073.32/x
  3. Step 3: Cross multiply
    521,050.32x = 781,575.08 × 147,073.32
  4. Step 4: Simplify right side
    521,050.32x = 114,948,841,109.50
  5. Step 5: Solve for x
    x = 114,948,841,109.50/521,050.32
  6. Step 6: Final answer
    x = 220,609.87

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Similar ratio
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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.