Home / 283,429.38-391,132.54-156,104.97

Finding the Fourth Proportional to 283,429.38, 391,132.54 and 156,104.97

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Solution

The fourth proportional to 283,429.38, 391,132.54 and 156,104.97 is: 215,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,429.38 : 391,132.54 = 156,104.97 : x
  2. Step 2: Convert to fraction form
    283,429.38/391,132.54 = 156,104.97/x
  3. Step 3: Cross multiply
    283,429.38x = 391,132.54 × 156,104.97
  4. Step 4: Simplify right side
    283,429.38x = 61,057,733,422.72
  5. Step 5: Solve for x
    x = 61,057,733,422.72/283,429.38
  6. Step 6: Final answer
    x = 215,424.86

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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.