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Finding the Fourth Proportional to 138,217.60, 207,326.40 and 44,721.04

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Solution

The fourth proportional to 138,217.60, 207,326.40 and 44,721.04 is: 67,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,217.60 : 207,326.40 = 44,721.04 : x
  2. Step 2: Convert to fraction form
    138,217.60/207,326.40 = 44,721.04/x
  3. Step 3: Cross multiply
    138,217.60x = 207,326.40 × 44,721.04
  4. Step 4: Simplify right side
    138,217.60x = 9,271,852,227.46
  5. Step 5: Solve for x
    x = 9,271,852,227.46/138,217.60
  6. Step 6: Final answer
    x = 67,081.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.