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Finding the Fourth Proportional to 438.82, 658.27 and 114.19

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Solution

The fourth proportional to 438.82, 658.27 and 114.19 is: 171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.82 : 658.27 = 114.19 : x
  2. Step 2: Convert to fraction form
    438.82/658.27 = 114.19/x
  3. Step 3: Cross multiply
    438.82x = 658.27 × 114.19
  4. Step 4: Simplify right side
    438.82x = 75,166.03
  5. Step 5: Solve for x
    x = 75,166.03/438.82
  6. Step 6: Final answer
    x = 171.29

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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.