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Finding the Fourth Proportional to 266,560.40, 399,861.24 and 89,068.02

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Solution

The fourth proportional to 266,560.40, 399,861.24 and 89,068.02 is: 133,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,560.40 : 399,861.24 = 89,068.02 : x
  2. Step 2: Convert to fraction form
    266,560.40/399,861.24 = 89,068.02/x
  3. Step 3: Cross multiply
    266,560.40x = 399,861.24 × 89,068.02
  4. Step 4: Simplify right side
    266,560.40x = 35,614,848,921.54
  5. Step 5: Solve for x
    x = 35,614,848,921.54/266,560.40
  6. Step 6: Final answer
    x = 133,608.93

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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.