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Finding the Fourth Proportional to 266,123.80, 399,099.30 and 88,600.60

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Solution

The fourth proportional to 266,123.80, 399,099.30 and 88,600.60 is: 132,872.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,123.80 : 399,099.30 = 88,600.60 : x
  2. Step 2: Convert to fraction form
    266,123.80/399,099.30 = 88,600.60/x
  3. Step 3: Cross multiply
    266,123.80x = 399,099.30 × 88,600.60
  4. Step 4: Simplify right side
    266,123.80x = 35,360,437,439.58
  5. Step 5: Solve for x
    x = 35,360,437,439.58/266,123.80
  6. Step 6: Final answer
    x = 132,872.13

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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.