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Finding the Fourth Proportional to 247,839.48, 342,035.39 and 140,410.40

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Solution

The fourth proportional to 247,839.48, 342,035.39 and 140,410.40 is: 193,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,839.48 : 342,035.39 = 140,410.40 : x
  2. Step 2: Convert to fraction form
    247,839.48/342,035.39 = 140,410.40/x
  3. Step 3: Cross multiply
    247,839.48x = 342,035.39 × 140,410.40
  4. Step 4: Simplify right side
    247,839.48x = 48,025,324,564.91
  5. Step 5: Solve for x
    x = 48,025,324,564.91/247,839.48
  6. Step 6: Final answer
    x = 193,775.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.