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Finding the Fourth Proportional to 266,397.53, 399,640.43 and 88,958.93

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Solution

The fourth proportional to 266,397.53, 399,640.43 and 88,958.93 is: 133,453.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,397.53 : 399,640.43 = 88,958.93 : x
  2. Step 2: Convert to fraction form
    266,397.53/399,640.43 = 88,958.93/x
  3. Step 3: Cross multiply
    266,397.53x = 399,640.43 × 88,958.93
  4. Step 4: Simplify right side
    266,397.53x = 35,551,582,594.54
  5. Step 5: Solve for x
    x = 35,551,582,594.54/266,397.53
  6. Step 6: Final answer
    x = 133,453.13

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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.