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Finding the Fourth Proportional to 266,414.78, 399,626.58 and 88,922.72

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Solution

The fourth proportional to 266,414.78, 399,626.58 and 88,922.72 is: 133,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,414.78 : 399,626.58 = 88,922.72 : x
  2. Step 2: Convert to fraction form
    266,414.78/399,626.58 = 88,922.72/x
  3. Step 3: Cross multiply
    266,414.78x = 399,626.58 × 88,922.72
  4. Step 4: Simplify right side
    266,414.78x = 35,535,882,477.90
  5. Step 5: Solve for x
    x = 35,535,882,477.90/266,414.78
  6. Step 6: Final answer
    x = 133,385.55

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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.