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Finding the Fourth Proportional to 241.88, 361.92 and 133.76

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Solution

The fourth proportional to 241.88, 361.92 and 133.76 is: 200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.88 : 361.92 = 133.76 : x
  2. Step 2: Convert to fraction form
    241.88/361.92 = 133.76/x
  3. Step 3: Cross multiply
    241.88x = 361.92 × 133.76
  4. Step 4: Simplify right side
    241.88x = 48,410.42
  5. Step 5: Solve for x
    x = 48,410.42/241.88
  6. Step 6: Final answer
    x = 200.14

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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.