Home / 283,785.12-391,691.70-170,586

Finding the Fourth Proportional to 283,785.12, 391,691.70 and 170,586

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Solution

The fourth proportional to 283,785.12, 391,691.70 and 170,586 is: 235,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,785.12 : 391,691.70 = 170,586 : x
  2. Step 2: Convert to fraction form
    283,785.12/391,691.70 = 170,586/x
  3. Step 3: Cross multiply
    283,785.12x = 391,691.70 × 170,586
  4. Step 4: Simplify right side
    283,785.12x = 66,817,120,336.20
  5. Step 5: Solve for x
    x = 66,817,120,336.20/283,785.12
  6. Step 6: Final answer
    x = 235,449.70

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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.