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Finding the Fourth Proportional to 247,782.11, 371,658.06 and 87,865.92

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Solution

The fourth proportional to 247,782.11, 371,658.06 and 87,865.92 is: 131,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,782.11 : 371,658.06 = 87,865.92 : x
  2. Step 2: Convert to fraction form
    247,782.11/371,658.06 = 87,865.92/x
  3. Step 3: Cross multiply
    247,782.11x = 371,658.06 × 87,865.92
  4. Step 4: Simplify right side
    247,782.11x = 32,656,077,367.32
  5. Step 5: Solve for x
    x = 32,656,077,367.32/247,782.11
  6. Step 6: Final answer
    x = 131,793.53

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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.