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Finding the Fourth Proportional to 266,102.24, 399,216.90 and 88,610.78

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Solution

The fourth proportional to 266,102.24, 399,216.90 and 88,610.78 is: 132,937.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,102.24 : 399,216.90 = 88,610.78 : x
  2. Step 2: Convert to fraction form
    266,102.24/399,216.90 = 88,610.78/x
  3. Step 3: Cross multiply
    266,102.24x = 399,216.90 × 88,610.78
  4. Step 4: Simplify right side
    266,102.24x = 35,374,920,898.18
  5. Step 5: Solve for x
    x = 35,374,920,898.18/266,102.24
  6. Step 6: Final answer
    x = 132,937.33

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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.