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Finding the Fourth Proportional to 396.29, 593.26 and 354.58

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Solution

The fourth proportional to 396.29, 593.26 and 354.58 is: 530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.29 : 593.26 = 354.58 : x
  2. Step 2: Convert to fraction form
    396.29/593.26 = 354.58/x
  3. Step 3: Cross multiply
    396.29x = 593.26 × 354.58
  4. Step 4: Simplify right side
    396.29x = 210,355.76
  5. Step 5: Solve for x
    x = 210,355.76/396.29
  6. Step 6: Final answer
    x = 530.81

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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.