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Finding the Fourth Proportional to 475,909.12, 656,787.99 and 271,990.20

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Solution

The fourth proportional to 475,909.12, 656,787.99 and 271,990.20 is: 375,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,909.12 : 656,787.99 = 271,990.20 : x
  2. Step 2: Convert to fraction form
    475,909.12/656,787.99 = 271,990.20/x
  3. Step 3: Cross multiply
    475,909.12x = 656,787.99 × 271,990.20
  4. Step 4: Simplify right side
    475,909.12x = 178,639,894,251.27
  5. Step 5: Solve for x
    x = 178,639,894,251.27/475,909.12
  6. Step 6: Final answer
    x = 375,365.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.