Home / 396,500.30-547,170.96-215,212.26

Finding the Fourth Proportional to 396,500.30, 547,170.96 and 215,212.26

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Solution

The fourth proportional to 396,500.30, 547,170.96 and 215,212.26 is: 296,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,500.30 : 547,170.96 = 215,212.26 : x
  2. Step 2: Convert to fraction form
    396,500.30/547,170.96 = 215,212.26/x
  3. Step 3: Cross multiply
    396,500.30x = 547,170.96 × 215,212.26
  4. Step 4: Simplify right side
    396,500.30x = 117,757,900,275.90
  5. Step 5: Solve for x
    x = 117,757,900,275.90/396,500.30
  6. Step 6: Final answer
    x = 296,993.22

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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.