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Finding the Fourth Proportional to 247,052.97, 340,807.91 and 156,256.02

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Solution

The fourth proportional to 247,052.97, 340,807.91 and 156,256.02 is: 215,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,052.97 : 340,807.91 = 156,256.02 : x
  2. Step 2: Convert to fraction form
    247,052.97/340,807.91 = 156,256.02/x
  3. Step 3: Cross multiply
    247,052.97x = 340,807.91 × 156,256.02
  4. Step 4: Simplify right side
    247,052.97x = 53,253,286,819.84
  5. Step 5: Solve for x
    x = 53,253,286,819.84/247,052.97
  6. Step 6: Final answer
    x = 215,554.13

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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.