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Finding the Fourth Proportional to 379, 568.62 and 196.24

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Solution

The fourth proportional to 379, 568.62 and 196.24 is: 294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379 : 568.62 = 196.24 : x
  2. Step 2: Convert to fraction form
    379/568.62 = 196.24/x
  3. Step 3: Cross multiply
    379x = 568.62 × 196.24
  4. Step 4: Simplify right side
    379x = 111,585.99
  5. Step 5: Solve for x
    x = 111,585.99/379
  6. Step 6: Final answer
    x = 294.42

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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.