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Finding the Fourth Proportional to 396.32, 545.70 and 337.19

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Solution

The fourth proportional to 396.32, 545.70 and 337.19 is: 464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.32 : 545.70 = 337.19 : x
  2. Step 2: Convert to fraction form
    396.32/545.70 = 337.19/x
  3. Step 3: Cross multiply
    396.32x = 545.70 × 337.19
  4. Step 4: Simplify right side
    396.32x = 184,004.58
  5. Step 5: Solve for x
    x = 184,004.58/396.32
  6. Step 6: Final answer
    x = 464.28

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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.