Home / 396,559.12-547,251.82-215,271

Finding the Fourth Proportional to 396,559.12, 547,251.82 and 215,271

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Solution

The fourth proportional to 396,559.12, 547,251.82 and 215,271 is: 297,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,559.12 : 547,251.82 = 215,271 : x
  2. Step 2: Convert to fraction form
    396,559.12/547,251.82 = 215,271/x
  3. Step 3: Cross multiply
    396,559.12x = 547,251.82 × 215,271
  4. Step 4: Simplify right side
    396,559.12x = 117,807,446,543.22
  5. Step 5: Solve for x
    x = 117,807,446,543.22/396,559.12
  6. Step 6: Final answer
    x = 297,074.11

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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.