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Finding the Fourth Proportional to 379.54, 568.91 and 163.06

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Solution

The fourth proportional to 379.54, 568.91 and 163.06 is: 244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.54 : 568.91 = 163.06 : x
  2. Step 2: Convert to fraction form
    379.54/568.91 = 163.06/x
  3. Step 3: Cross multiply
    379.54x = 568.91 × 163.06
  4. Step 4: Simplify right side
    379.54x = 92,766.46
  5. Step 5: Solve for x
    x = 92,766.46/379.54
  6. Step 6: Final answer
    x = 244.42

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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.