Home / 252,849.39-379,147.11-84,310.05

Finding the Fourth Proportional to 252,849.39, 379,147.11 and 84,310.05

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Solution

The fourth proportional to 252,849.39, 379,147.11 and 84,310.05 is: 126,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,849.39 : 379,147.11 = 84,310.05 : x
  2. Step 2: Convert to fraction form
    252,849.39/379,147.11 = 84,310.05/x
  3. Step 3: Cross multiply
    252,849.39x = 379,147.11 × 84,310.05
  4. Step 4: Simplify right side
    252,849.39x = 31,965,911,801.46
  5. Step 5: Solve for x
    x = 31,965,911,801.46/252,849.39
  6. Step 6: Final answer
    x = 126,422.74

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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.