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Finding the Fourth Proportional to 247,471.59, 341,508.09 and 138,576.92

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Solution

The fourth proportional to 247,471.59, 341,508.09 and 138,576.92 is: 191,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,471.59 : 341,508.09 = 138,576.92 : x
  2. Step 2: Convert to fraction form
    247,471.59/341,508.09 = 138,576.92/x
  3. Step 3: Cross multiply
    247,471.59x = 341,508.09 × 138,576.92
  4. Step 4: Simplify right side
    247,471.59x = 47,325,137,559.74
  5. Step 5: Solve for x
    x = 47,325,137,559.74/247,471.59
  6. Step 6: Final answer
    x = 191,234.63

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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.