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Finding the Fourth Proportional to 266,455.27, 399,666.50 and 88,947.42

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Solution

The fourth proportional to 266,455.27, 399,666.50 and 88,947.42 is: 133,415.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,455.27 : 399,666.50 = 88,947.42 : x
  2. Step 2: Convert to fraction form
    266,455.27/399,666.50 = 88,947.42/x
  3. Step 3: Cross multiply
    266,455.27x = 399,666.50 × 88,947.42
  4. Step 4: Simplify right side
    266,455.27x = 35,549,304,035.43
  5. Step 5: Solve for x
    x = 35,549,304,035.43/266,455.27
  6. Step 6: Final answer
    x = 133,415.65

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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.