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Finding the Fourth Proportional to 266,232.20, 399,542.70 and 187,500.20

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Solution

The fourth proportional to 266,232.20, 399,542.70 and 187,500.20 is: 281,387.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,232.20 : 399,542.70 = 187,500.20 : x
  2. Step 2: Convert to fraction form
    266,232.20/399,542.70 = 187,500.20/x
  3. Step 3: Cross multiply
    266,232.20x = 399,542.70 × 187,500.20
  4. Step 4: Simplify right side
    266,232.20x = 74,914,336,158.54
  5. Step 5: Solve for x
    x = 74,914,336,158.54/266,232.20
  6. Step 6: Final answer
    x = 281,387.21

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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.