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Finding the Fourth Proportional to 396,546.98, 547,235.53 and 215,259.03

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Solution

The fourth proportional to 396,546.98, 547,235.53 and 215,259.03 is: 297,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,546.98 : 547,235.53 = 215,259.03 : x
  2. Step 2: Convert to fraction form
    396,546.98/547,235.53 = 215,259.03/x
  3. Step 3: Cross multiply
    396,546.98x = 547,235.53 × 215,259.03
  4. Step 4: Simplify right side
    396,546.98x = 117,797,388,293.04
  5. Step 5: Solve for x
    x = 117,797,388,293.04/396,546.98
  6. Step 6: Final answer
    x = 297,057.84

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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.