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Finding the Fourth Proportional to 492,442.08, 738,531.72 and 137,393.70

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Solution

The fourth proportional to 492,442.08, 738,531.72 and 137,393.70 is: 206,053.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,442.08 : 738,531.72 = 137,393.70 : x
  2. Step 2: Convert to fraction form
    492,442.08/738,531.72 = 137,393.70/x
  3. Step 3: Cross multiply
    492,442.08x = 738,531.72 × 137,393.70
  4. Step 4: Simplify right side
    492,442.08x = 101,469,605,578.16
  5. Step 5: Solve for x
    x = 101,469,605,578.16/492,442.08
  6. Step 6: Final answer
    x = 206,053.89

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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.