Home / 396,489.03-547,147.99-215,197.06

Finding the Fourth Proportional to 396,489.03, 547,147.99 and 215,197.06

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Solution

The fourth proportional to 396,489.03, 547,147.99 and 215,197.06 is: 296,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,489.03 : 547,147.99 = 215,197.06 : x
  2. Step 2: Convert to fraction form
    396,489.03/547,147.99 = 215,197.06/x
  3. Step 3: Cross multiply
    396,489.03x = 547,147.99 × 215,197.06
  4. Step 4: Simplify right side
    396,489.03x = 117,744,640,738.77
  5. Step 5: Solve for x
    x = 117,744,640,738.77/396,489.03
  6. Step 6: Final answer
    x = 296,968.22

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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.