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Finding the Fourth Proportional to 386,704.76, 580,033.82 and 229,930.88

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Solution

The fourth proportional to 386,704.76, 580,033.82 and 229,930.88 is: 344,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,704.76 : 580,033.82 = 229,930.88 : x
  2. Step 2: Convert to fraction form
    386,704.76/580,033.82 = 229,930.88/x
  3. Step 3: Cross multiply
    386,704.76x = 580,033.82 × 229,930.88
  4. Step 4: Simplify right side
    386,704.76x = 133,367,686,662.36
  5. Step 5: Solve for x
    x = 133,367,686,662.36/386,704.76
  6. Step 6: Final answer
    x = 344,882.45

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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.