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Finding the Fourth Proportional to 408,118.44, 612,176.82 and 108,599

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Solution

The fourth proportional to 408,118.44, 612,176.82 and 108,599 is: 162,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,118.44 : 612,176.82 = 108,599 : x
  2. Step 2: Convert to fraction form
    408,118.44/612,176.82 = 108,599/x
  3. Step 3: Cross multiply
    408,118.44x = 612,176.82 × 108,599
  4. Step 4: Simplify right side
    408,118.44x = 66,481,790,475.18
  5. Step 5: Solve for x
    x = 66,481,790,475.18/408,118.44
  6. Step 6: Final answer
    x = 162,898.28

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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.