Home / 396,422.28-547,064.22-215,134.20

Finding the Fourth Proportional to 396,422.28, 547,064.22 and 215,134.20

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Solution

The fourth proportional to 396,422.28, 547,064.22 and 215,134.20 is: 296,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,422.28 : 547,064.22 = 215,134.20 : x
  2. Step 2: Convert to fraction form
    396,422.28/547,064.22 = 215,134.20/x
  3. Step 3: Cross multiply
    396,422.28x = 547,064.22 × 215,134.20
  4. Step 4: Simplify right side
    396,422.28x = 117,692,223,318.32
  5. Step 5: Solve for x
    x = 117,692,223,318.32/396,422.28
  6. Step 6: Final answer
    x = 296,886.00

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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.