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Finding the Fourth Proportional to 207,498.57, 286,344.14 and 126,920.17

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Solution

The fourth proportional to 207,498.57, 286,344.14 and 126,920.17 is: 175,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,498.57 : 286,344.14 = 126,920.17 : x
  2. Step 2: Convert to fraction form
    207,498.57/286,344.14 = 126,920.17/x
  3. Step 3: Cross multiply
    207,498.57x = 286,344.14 × 126,920.17
  4. Step 4: Simplify right side
    207,498.57x = 36,342,846,927.30
  5. Step 5: Solve for x
    x = 36,342,846,927.30/207,498.57
  6. Step 6: Final answer
    x = 175,147.46

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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.