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Finding the Fourth Proportional to 247,605.78, 341,695.97 and 134,428.54

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Solution

The fourth proportional to 247,605.78, 341,695.97 and 134,428.54 is: 185,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,605.78 : 341,695.97 = 134,428.54 : x
  2. Step 2: Convert to fraction form
    247,605.78/341,695.97 = 134,428.54/x
  3. Step 3: Cross multiply
    247,605.78x = 341,695.97 × 134,428.54
  4. Step 4: Simplify right side
    247,605.78x = 45,933,690,370.98
  5. Step 5: Solve for x
    x = 45,933,690,370.98/247,605.78
  6. Step 6: Final answer
    x = 185,511.38

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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.