Home / 396,466.18-547,128.57-215,180.28

Finding the Fourth Proportional to 396,466.18, 547,128.57 and 215,180.28

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Solution

The fourth proportional to 396,466.18, 547,128.57 and 215,180.28 is: 296,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,466.18 : 547,128.57 = 215,180.28 : x
  2. Step 2: Convert to fraction form
    396,466.18/547,128.57 = 215,180.28/x
  3. Step 3: Cross multiply
    396,466.18x = 547,128.57 × 215,180.28
  4. Step 4: Simplify right side
    396,466.18x = 117,731,279,695.53
  5. Step 5: Solve for x
    x = 117,731,279,695.53/396,466.18
  6. Step 6: Final answer
    x = 296,951.64

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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.