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Finding the Fourth Proportional to 396, 594.24 and 164.88

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Solution

The fourth proportional to 396, 594.24 and 164.88 is: 247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396 : 594.24 = 164.88 : x
  2. Step 2: Convert to fraction form
    396/594.24 = 164.88/x
  3. Step 3: Cross multiply
    396x = 594.24 × 164.88
  4. Step 4: Simplify right side
    396x = 97,978.29
  5. Step 5: Solve for x
    x = 97,978.29/396
  6. Step 6: Final answer
    x = 247.42

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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.