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Finding the Fourth Proportional to 408,000.47, 612,104.52 and 239,663.17

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Solution

The fourth proportional to 408,000.47, 612,104.52 and 239,663.17 is: 359,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,000.47 : 612,104.52 = 239,663.17 : x
  2. Step 2: Convert to fraction form
    408,000.47/612,104.52 = 239,663.17/x
  3. Step 3: Cross multiply
    408,000.47x = 612,104.52 × 239,663.17
  4. Step 4: Simplify right side
    408,000.47x = 146,698,906,574.01
  5. Step 5: Solve for x
    x = 146,698,906,574.01/408,000.47
  6. Step 6: Final answer
    x = 359,555.73

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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.