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Finding the Fourth Proportional to 396.35, 594.62 and 165.16

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Solution

The fourth proportional to 396.35, 594.62 and 165.16 is: 247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.35 : 594.62 = 165.16 : x
  2. Step 2: Convert to fraction form
    396.35/594.62 = 165.16/x
  3. Step 3: Cross multiply
    396.35x = 594.62 × 165.16
  4. Step 4: Simplify right side
    396.35x = 98,207.44
  5. Step 5: Solve for x
    x = 98,207.44/396.35
  6. Step 6: Final answer
    x = 247.78

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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.