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Finding the Fourth Proportional to 266,582.60, 399,873.89 and 89,089.61

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Solution

The fourth proportional to 266,582.60, 399,873.89 and 89,089.61 is: 133,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,582.60 : 399,873.89 = 89,089.61 : x
  2. Step 2: Convert to fraction form
    266,582.60/399,873.89 = 89,089.61/x
  3. Step 3: Cross multiply
    266,582.60x = 399,873.89 × 89,089.61
  4. Step 4: Simplify right side
    266,582.60x = 35,624,607,882.40
  5. Step 5: Solve for x
    x = 35,624,607,882.40/266,582.60
  6. Step 6: Final answer
    x = 133,634.41

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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.