Home / 396,432.27-547,076.88-215,144.22

Finding the Fourth Proportional to 396,432.27, 547,076.88 and 215,144.22

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Solution

The fourth proportional to 396,432.27, 547,076.88 and 215,144.22 is: 296,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,432.27 : 547,076.88 = 215,144.22 : x
  2. Step 2: Convert to fraction form
    396,432.27/547,076.88 = 215,144.22/x
  3. Step 3: Cross multiply
    396,432.27x = 547,076.88 × 215,144.22
  4. Step 4: Simplify right side
    396,432.27x = 117,700,428,627.63
  5. Step 5: Solve for x
    x = 117,700,428,627.63/396,432.27
  6. Step 6: Final answer
    x = 296,899.21

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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.