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Finding the Fourth Proportional to 241.62, 361.98 and 131.76

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Solution

The fourth proportional to 241.62, 361.98 and 131.76 is: 197.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.62 : 361.98 = 131.76 : x
  2. Step 2: Convert to fraction form
    241.62/361.98 = 131.76/x
  3. Step 3: Cross multiply
    241.62x = 361.98 × 131.76
  4. Step 4: Simplify right side
    241.62x = 47,694.48
  5. Step 5: Solve for x
    x = 47,694.48/241.62
  6. Step 6: Final answer
    x = 197.39

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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.