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Finding the Fourth Proportional to 266,439.92, 399,572.40 and 88,899.26

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Solution

The fourth proportional to 266,439.92, 399,572.40 and 88,899.26 is: 133,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,439.92 : 399,572.40 = 88,899.26 : x
  2. Step 2: Convert to fraction form
    266,439.92/399,572.40 = 88,899.26/x
  3. Step 3: Cross multiply
    266,439.92x = 399,572.40 × 88,899.26
  4. Step 4: Simplify right side
    266,439.92x = 35,521,690,676.42
  5. Step 5: Solve for x
    x = 35,521,690,676.42/266,439.92
  6. Step 6: Final answer
    x = 133,319.70

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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.