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Finding the Fourth Proportional to 266,600.16, 399,861.36 and 89,103.24

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Solution

The fourth proportional to 266,600.16, 399,861.36 and 89,103.24 is: 133,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,600.16 : 399,861.36 = 89,103.24 : x
  2. Step 2: Convert to fraction form
    266,600.16/399,861.36 = 89,103.24/x
  3. Step 3: Cross multiply
    266,600.16x = 399,861.36 × 89,103.24
  4. Step 4: Simplify right side
    266,600.16x = 35,628,942,726.81
  5. Step 5: Solve for x
    x = 35,628,942,726.81/266,600.16
  6. Step 6: Final answer
    x = 133,641.87

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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.