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Finding the Fourth Proportional to 241.22, 332.90 and 136.31

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Solution

The fourth proportional to 241.22, 332.90 and 136.31 is: 188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.22 : 332.90 = 136.31 : x
  2. Step 2: Convert to fraction form
    241.22/332.90 = 136.31/x
  3. Step 3: Cross multiply
    241.22x = 332.90 × 136.31
  4. Step 4: Simplify right side
    241.22x = 45,375.25
  5. Step 5: Solve for x
    x = 45,375.25/241.22
  6. Step 6: Final answer
    x = 188.11

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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.