Home / 396,440.06-547,087.57-215,151.95

Finding the Fourth Proportional to 396,440.06, 547,087.57 and 215,151.95

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Solution

The fourth proportional to 396,440.06, 547,087.57 and 215,151.95 is: 296,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,440.06 : 547,087.57 = 215,151.95 : x
  2. Step 2: Convert to fraction form
    396,440.06/547,087.57 = 215,151.95/x
  3. Step 3: Cross multiply
    396,440.06x = 547,087.57 × 215,151.95
  4. Step 4: Simplify right side
    396,440.06x = 117,706,958,336.10
  5. Step 5: Solve for x
    x = 117,706,958,336.10/396,440.06
  6. Step 6: Final answer
    x = 296,909.85

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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.