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Finding the Fourth Proportional to 241.19, 361.49 and 111.15

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Solution

The fourth proportional to 241.19, 361.49 and 111.15 is: 166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.19 : 361.49 = 111.15 : x
  2. Step 2: Convert to fraction form
    241.19/361.49 = 111.15/x
  3. Step 3: Cross multiply
    241.19x = 361.49 × 111.15
  4. Step 4: Simplify right side
    241.19x = 40,179.61
  5. Step 5: Solve for x
    x = 40,179.61/241.19
  6. Step 6: Final answer
    x = 166.59

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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.