Home / 218,815.60-328,234.20-113,839.60

Finding the Fourth Proportional to 218,815.60, 328,234.20 and 113,839.60

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Solution

The fourth proportional to 218,815.60, 328,234.20 and 113,839.60 is: 170,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,815.60 : 328,234.20 = 113,839.60 : x
  2. Step 2: Convert to fraction form
    218,815.60/328,234.20 = 113,839.60/x
  3. Step 3: Cross multiply
    218,815.60x = 328,234.20 × 113,839.60
  4. Step 4: Simplify right side
    218,815.60x = 37,366,050,034.32
  5. Step 5: Solve for x
    x = 37,366,050,034.32/218,815.60
  6. Step 6: Final answer
    x = 170,765.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.