Home / 283,836.52-391,694.16-156,520.18

Finding the Fourth Proportional to 283,836.52, 391,694.16 and 156,520.18

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Solution

The fourth proportional to 283,836.52, 391,694.16 and 156,520.18 is: 215,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,836.52 : 391,694.16 = 156,520.18 : x
  2. Step 2: Convert to fraction form
    283,836.52/391,694.16 = 156,520.18/x
  3. Step 3: Cross multiply
    283,836.52x = 391,694.16 × 156,520.18
  4. Step 4: Simplify right side
    283,836.52x = 61,308,040,428.15
  5. Step 5: Solve for x
    x = 61,308,040,428.15/283,836.52
  6. Step 6: Final answer
    x = 215,997.72

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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.