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Finding the Fourth Proportional to 247,201.28, 341,144.48 and 139,787.38

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Solution

The fourth proportional to 247,201.28, 341,144.48 and 139,787.38 is: 192,910.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.28 : 341,144.48 = 139,787.38 : x
  2. Step 2: Convert to fraction form
    247,201.28/341,144.48 = 139,787.38/x
  3. Step 3: Cross multiply
    247,201.28x = 341,144.48 × 139,787.38
  4. Step 4: Simplify right side
    247,201.28x = 47,687,690,656.00
  5. Step 5: Solve for x
    x = 47,687,690,656.00/247,201.28
  6. Step 6: Final answer
    x = 192,910.37

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1.5x scale

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.