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Finding the Fourth Proportional to 282.26, 422.58 and 179.66

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Solution

The fourth proportional to 282.26, 422.58 and 179.66 is: 268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.26 : 422.58 = 179.66 : x
  2. Step 2: Convert to fraction form
    282.26/422.58 = 179.66/x
  3. Step 3: Cross multiply
    282.26x = 422.58 × 179.66
  4. Step 4: Simplify right side
    282.26x = 75,920.72
  5. Step 5: Solve for x
    x = 75,920.72/282.26
  6. Step 6: Final answer
    x = 268.97

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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.