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Finding the Fourth Proportional to 272,357.30, 408,049.95 and 131,806.10

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Solution

The fourth proportional to 272,357.30, 408,049.95 and 131,806.10 is: 197,473.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,357.30 : 408,049.95 = 131,806.10 : x
  2. Step 2: Convert to fraction form
    272,357.30/408,049.95 = 131,806.10/x
  3. Step 3: Cross multiply
    272,357.30x = 408,049.95 × 131,806.10
  4. Step 4: Simplify right side
    272,357.30x = 53,783,472,514.70
  5. Step 5: Solve for x
    x = 53,783,472,514.70/272,357.30
  6. Step 6: Final answer
    x = 197,473.95

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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.