Home / 396,439.82-547,087.23-215,151.70

Finding the Fourth Proportional to 396,439.82, 547,087.23 and 215,151.70

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Solution

The fourth proportional to 396,439.82, 547,087.23 and 215,151.70 is: 296,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,439.82 : 547,087.23 = 215,151.70 : x
  2. Step 2: Convert to fraction form
    396,439.82/547,087.23 = 215,151.70/x
  3. Step 3: Cross multiply
    396,439.82x = 547,087.23 × 215,151.70
  4. Step 4: Simplify right side
    396,439.82x = 117,706,746,507.03
  5. Step 5: Solve for x
    x = 117,706,746,507.03/396,439.82
  6. Step 6: Final answer
    x = 296,909.50

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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.