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Finding the Fourth Proportional to 241.72, 331.34 and 238.07

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Solution

The fourth proportional to 241.72, 331.34 and 238.07 is: 326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.72 : 331.34 = 238.07 : x
  2. Step 2: Convert to fraction form
    241.72/331.34 = 238.07/x
  3. Step 3: Cross multiply
    241.72x = 331.34 × 238.07
  4. Step 4: Simplify right side
    241.72x = 78,881.75
  5. Step 5: Solve for x
    x = 78,881.75/241.72
  6. Step 6: Final answer
    x = 326.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.