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Finding the Fourth Proportional to 242.82, 362.79 and 240.66

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Solution

The fourth proportional to 242.82, 362.79 and 240.66 is: 359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.82 : 362.79 = 240.66 : x
  2. Step 2: Convert to fraction form
    242.82/362.79 = 240.66/x
  3. Step 3: Cross multiply
    242.82x = 362.79 × 240.66
  4. Step 4: Simplify right side
    242.82x = 87,309.04
  5. Step 5: Solve for x
    x = 87,309.04/242.82
  6. Step 6: Final answer
    x = 359.56

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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.