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Finding the Fourth Proportional to 396.71, 594.59 and 153.03

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Solution

The fourth proportional to 396.71, 594.59 and 153.03 is: 229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.71 : 594.59 = 153.03 : x
  2. Step 2: Convert to fraction form
    396.71/594.59 = 153.03/x
  3. Step 3: Cross multiply
    396.71x = 594.59 × 153.03
  4. Step 4: Simplify right side
    396.71x = 90,989.34
  5. Step 5: Solve for x
    x = 90,989.34/396.71
  6. Step 6: Final answer
    x = 229.36

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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.