Home / 283,422.12-391,121.50-156,097.41

Finding the Fourth Proportional to 283,422.12, 391,121.50 and 156,097.41

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Solution

The fourth proportional to 283,422.12, 391,121.50 and 156,097.41 is: 215,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,422.12 : 391,121.50 = 156,097.41 : x
  2. Step 2: Convert to fraction form
    283,422.12/391,121.50 = 156,097.41/x
  3. Step 3: Cross multiply
    283,422.12x = 391,121.50 × 156,097.41
  4. Step 4: Simplify right side
    283,422.12x = 61,053,053,145.32
  5. Step 5: Solve for x
    x = 61,053,053,145.32/283,422.12
  6. Step 6: Final answer
    x = 215,413.86

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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.