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Finding the Fourth Proportional to 243.46, 363.02 and 240.49

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Solution

The fourth proportional to 243.46, 363.02 and 240.49 is: 358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.46 : 363.02 = 240.49 : x
  2. Step 2: Convert to fraction form
    243.46/363.02 = 240.49/x
  3. Step 3: Cross multiply
    243.46x = 363.02 × 240.49
  4. Step 4: Simplify right side
    243.46x = 87,302.68
  5. Step 5: Solve for x
    x = 87,302.68/243.46
  6. Step 6: Final answer
    x = 358.59

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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.