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Finding the Fourth Proportional to 266,744.10, 400,137.12 and 89,251.74

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Solution

The fourth proportional to 266,744.10, 400,137.12 and 89,251.74 is: 133,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,744.10 : 400,137.12 = 89,251.74 : x
  2. Step 2: Convert to fraction form
    266,744.10/400,137.12 = 89,251.74/x
  3. Step 3: Cross multiply
    266,744.10x = 400,137.12 × 89,251.74
  4. Step 4: Simplify right side
    266,744.10x = 35,712,934,198.59
  5. Step 5: Solve for x
    x = 35,712,934,198.59/266,744.10
  6. Step 6: Final answer
    x = 133,884.63

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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.