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Finding the Fourth Proportional to 247,761.35, 341,934.59 and 138,884.12

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Solution

The fourth proportional to 247,761.35, 341,934.59 and 138,884.12 is: 191,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,761.35 : 341,934.59 = 138,884.12 : x
  2. Step 2: Convert to fraction form
    247,761.35/341,934.59 = 138,884.12/x
  3. Step 3: Cross multiply
    247,761.35x = 341,934.59 × 138,884.12
  4. Step 4: Simplify right side
    247,761.35x = 47,489,284,629.71
  5. Step 5: Solve for x
    x = 47,489,284,629.71/247,761.35
  6. Step 6: Final answer
    x = 191,673.50

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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.