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Finding the Fourth Proportional to 174.96, 241.48 and 126.21

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Solution

The fourth proportional to 174.96, 241.48 and 126.21 is: 174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.96 : 241.48 = 126.21 : x
  2. Step 2: Convert to fraction form
    174.96/241.48 = 126.21/x
  3. Step 3: Cross multiply
    174.96x = 241.48 × 126.21
  4. Step 4: Simplify right side
    174.96x = 30,476.90
  5. Step 5: Solve for x
    x = 30,476.90/174.96
  6. Step 6: Final answer
    x = 174.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.