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Finding the Fourth Proportional to 242.79, 366.82 and 240.63

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Solution

The fourth proportional to 242.79, 366.82 and 240.63 is: 363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.79 : 366.82 = 240.63 : x
  2. Step 2: Convert to fraction form
    242.79/366.82 = 240.63/x
  3. Step 3: Cross multiply
    242.79x = 366.82 × 240.63
  4. Step 4: Simplify right side
    242.79x = 88,267.90
  5. Step 5: Solve for x
    x = 88,267.90/242.79
  6. Step 6: Final answer
    x = 363.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.