Home / 396,581.55-547,282.89-215,293.36

Finding the Fourth Proportional to 396,581.55, 547,282.89 and 215,293.36

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Solution

The fourth proportional to 396,581.55, 547,282.89 and 215,293.36 is: 297,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,581.55 : 547,282.89 = 215,293.36 : x
  2. Step 2: Convert to fraction form
    396,581.55/547,282.89 = 215,293.36/x
  3. Step 3: Cross multiply
    396,581.55x = 547,282.89 × 215,293.36
  4. Step 4: Simplify right side
    396,581.55x = 117,826,372,258.61
  5. Step 5: Solve for x
    x = 117,826,372,258.61/396,581.55
  6. Step 6: Final answer
    x = 297,105.03

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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.