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Finding the Fourth Proportional to 444,635.60, 667,039.80 and 129,102.80

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Solution

The fourth proportional to 444,635.60, 667,039.80 and 129,102.80 is: 193,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,635.60 : 667,039.80 = 129,102.80 : x
  2. Step 2: Convert to fraction form
    444,635.60/667,039.80 = 129,102.80/x
  3. Step 3: Cross multiply
    444,635.60x = 667,039.80 × 129,102.80
  4. Step 4: Simplify right side
    444,635.60x = 86,116,705,891.44
  5. Step 5: Solve for x
    x = 86,116,705,891.44/444,635.60
  6. Step 6: Final answer
    x = 193,679.29

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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.