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Finding the Fourth Proportional to 351,487.80, 527,231.70 and 126,882.90

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Solution

The fourth proportional to 351,487.80, 527,231.70 and 126,882.90 is: 190,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,487.80 : 527,231.70 = 126,882.90 : x
  2. Step 2: Convert to fraction form
    351,487.80/527,231.70 = 126,882.90/x
  3. Step 3: Cross multiply
    351,487.80x = 527,231.70 × 126,882.90
  4. Step 4: Simplify right side
    351,487.80x = 66,896,687,067.93
  5. Step 5: Solve for x
    x = 66,896,687,067.93/351,487.80
  6. Step 6: Final answer
    x = 190,324.35

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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.