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Finding the Fourth Proportional to 241.19, 361.64 and 131.40

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Solution

The fourth proportional to 241.19, 361.64 and 131.40 is: 197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.19 : 361.64 = 131.40 : x
  2. Step 2: Convert to fraction form
    241.19/361.64 = 131.40/x
  3. Step 3: Cross multiply
    241.19x = 361.64 × 131.40
  4. Step 4: Simplify right side
    241.19x = 47,519.50
  5. Step 5: Solve for x
    x = 47,519.50/241.19
  6. Step 6: Final answer
    x = 197.02

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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.