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Finding the Fourth Proportional to 242.82, 361.78 and 237.35

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Solution

The fourth proportional to 242.82, 361.78 and 237.35 is: 353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.82 : 361.78 = 237.35 : x
  2. Step 2: Convert to fraction form
    242.82/361.78 = 237.35/x
  3. Step 3: Cross multiply
    242.82x = 361.78 × 237.35
  4. Step 4: Simplify right side
    242.82x = 85,868.79
  5. Step 5: Solve for x
    x = 85,868.79/242.82
  6. Step 6: Final answer
    x = 353.63

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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.