Home / 283,755.12-391,584.74-156,435.27

Finding the Fourth Proportional to 283,755.12, 391,584.74 and 156,435.27

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Solution

The fourth proportional to 283,755.12, 391,584.74 and 156,435.27 is: 215,882.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,755.12 : 391,584.74 = 156,435.27 : x
  2. Step 2: Convert to fraction form
    283,755.12/391,584.74 = 156,435.27/x
  3. Step 3: Cross multiply
    283,755.12x = 391,584.74 × 156,435.27
  4. Step 4: Simplify right side
    283,755.12x = 61,257,664,920.87
  5. Step 5: Solve for x
    x = 61,257,664,920.87/283,755.12
  6. Step 6: Final answer
    x = 215,882.15

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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.