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Finding the Fourth Proportional to 396.86, 547.73 and 237.33

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Solution

The fourth proportional to 396.86, 547.73 and 237.33 is: 327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.86 : 547.73 = 237.33 : x
  2. Step 2: Convert to fraction form
    396.86/547.73 = 237.33/x
  3. Step 3: Cross multiply
    396.86x = 547.73 × 237.33
  4. Step 4: Simplify right side
    396.86x = 129,991.57
  5. Step 5: Solve for x
    x = 129,991.57/396.86
  6. Step 6: Final answer
    x = 327.55

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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.