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Finding the Fourth Proportional to 266,474.60, 399,789.76 and 89,106.13

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Solution

The fourth proportional to 266,474.60, 399,789.76 and 89,106.13 is: 133,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,474.60 : 399,789.76 = 89,106.13 : x
  2. Step 2: Convert to fraction form
    266,474.60/399,789.76 = 89,106.13/x
  3. Step 3: Cross multiply
    266,474.60x = 399,789.76 × 89,106.13
  4. Step 4: Simplify right side
    266,474.60x = 35,623,718,327.23
  5. Step 5: Solve for x
    x = 35,623,718,327.23/266,474.60
  6. Step 6: Final answer
    x = 133,685.23

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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.