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Finding the Fourth Proportional to 266,177.57, 399,329.90 and 88,686.11

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Solution

The fourth proportional to 266,177.57, 399,329.90 and 88,686.11 is: 133,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,177.57 : 399,329.90 = 88,686.11 : x
  2. Step 2: Convert to fraction form
    266,177.57/399,329.90 = 88,686.11/x
  3. Step 3: Cross multiply
    266,177.57x = 399,329.90 × 88,686.11
  4. Step 4: Simplify right side
    266,177.57x = 35,415,012,997.61
  5. Step 5: Solve for x
    x = 35,415,012,997.61/266,177.57
  6. Step 6: Final answer
    x = 133,050.33

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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.