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Finding the Fourth Proportional to 165,306.80, 247,960.20 and 137,750.60

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Solution

The fourth proportional to 165,306.80, 247,960.20 and 137,750.60 is: 206,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,306.80 : 247,960.20 = 137,750.60 : x
  2. Step 2: Convert to fraction form
    165,306.80/247,960.20 = 137,750.60/x
  3. Step 3: Cross multiply
    165,306.80x = 247,960.20 × 137,750.60
  4. Step 4: Simplify right side
    165,306.80x = 34,156,666,326.12
  5. Step 5: Solve for x
    x = 34,156,666,326.12/165,306.80
  6. Step 6: Final answer
    x = 206,625.90

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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.