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Finding the Fourth Proportional to 396.61, 593.73 and 272.95

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Solution

The fourth proportional to 396.61, 593.73 and 272.95 is: 408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.61 : 593.73 = 272.95 : x
  2. Step 2: Convert to fraction form
    396.61/593.73 = 272.95/x
  3. Step 3: Cross multiply
    396.61x = 593.73 × 272.95
  4. Step 4: Simplify right side
    396.61x = 162,058.60
  5. Step 5: Solve for x
    x = 162,058.60/396.61
  6. Step 6: Final answer
    x = 408.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.