Home / 396,517.68-547,198.34-215,231.18

Finding the Fourth Proportional to 396,517.68, 547,198.34 and 215,231.18

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Solution

The fourth proportional to 396,517.68, 547,198.34 and 215,231.18 is: 297,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,517.68 : 547,198.34 = 215,231.18 : x
  2. Step 2: Convert to fraction form
    396,517.68/547,198.34 = 215,231.18/x
  3. Step 3: Cross multiply
    396,517.68x = 547,198.34 × 215,231.18
  4. Step 4: Simplify right side
    396,517.68x = 117,774,140,600.09
  5. Step 5: Solve for x
    x = 117,774,140,600.09/396,517.68
  6. Step 6: Final answer
    x = 297,021.16

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1.5x scale

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.