Home / 396,475.82-547,137.14-215,187.73

Finding the Fourth Proportional to 396,475.82, 547,137.14 and 215,187.73

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Solution

The fourth proportional to 396,475.82, 547,137.14 and 215,187.73 is: 296,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,475.82 : 547,137.14 = 215,187.73 : x
  2. Step 2: Convert to fraction form
    396,475.82/547,137.14 = 215,187.73/x
  3. Step 3: Cross multiply
    396,475.82x = 547,137.14 × 215,187.73
  4. Step 4: Simplify right side
    396,475.82x = 117,737,199,155.29
  5. Step 5: Solve for x
    x = 117,737,199,155.29/396,475.82
  6. Step 6: Final answer
    x = 296,959.34

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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.