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Finding the Fourth Proportional to 283,755.60, 391,585.46 and 156,435.84

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Solution

The fourth proportional to 283,755.60, 391,585.46 and 156,435.84 is: 215,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,755.60 : 391,585.46 = 156,435.84 : x
  2. Step 2: Convert to fraction form
    283,755.60/391,585.46 = 156,435.84/x
  3. Step 3: Cross multiply
    283,755.60x = 391,585.46 × 156,435.84
  4. Step 4: Simplify right side
    283,755.60x = 61,258,000,366.89
  5. Step 5: Solve for x
    x = 61,258,000,366.89/283,755.60
  6. Step 6: Final answer
    x = 215,882.97

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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.