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Finding the Fourth Proportional to 242.43, 361.17 and 230.82

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Solution

The fourth proportional to 242.43, 361.17 and 230.82 is: 343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.43 : 361.17 = 230.82 : x
  2. Step 2: Convert to fraction form
    242.43/361.17 = 230.82/x
  3. Step 3: Cross multiply
    242.43x = 361.17 × 230.82
  4. Step 4: Simplify right side
    242.43x = 83,364.11
  5. Step 5: Solve for x
    x = 83,364.11/242.43
  6. Step 6: Final answer
    x = 343.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.