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Finding the Fourth Proportional to 396.97, 593.83 and 320.02

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Solution

The fourth proportional to 396.97, 593.83 and 320.02 is: 478.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.97 : 593.83 = 320.02 : x
  2. Step 2: Convert to fraction form
    396.97/593.83 = 320.02/x
  3. Step 3: Cross multiply
    396.97x = 593.83 × 320.02
  4. Step 4: Simplify right side
    396.97x = 190,036.39
  5. Step 5: Solve for x
    x = 190,036.39/396.97
  6. Step 6: Final answer
    x = 478.72

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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.