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Finding the Fourth Proportional to 247,879.72, 371,753.16 and 107,605

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Solution

The fourth proportional to 247,879.72, 371,753.16 and 107,605 is: 161,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,879.72 : 371,753.16 = 107,605 : x
  2. Step 2: Convert to fraction form
    247,879.72/371,753.16 = 107,605/x
  3. Step 3: Cross multiply
    247,879.72x = 371,753.16 × 107,605
  4. Step 4: Simplify right side
    247,879.72x = 40,002,498,781.80
  5. Step 5: Solve for x
    x = 40,002,498,781.80/247,879.72
  6. Step 6: Final answer
    x = 161,378.67

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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.