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Finding the Third Proportional to 243.79 and 366.71

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Solution

The third proportional to 243.79 and 366.71 is: 551.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.79 : 366.71 = 366.71 : x
  2. Step 2: Convert to fraction form
    243.79/366.71 = 366.71/x
  3. Step 3: Cross multiply
    243.79x = 366.71 × 366.71
  4. Step 4: Simplify right side
    243.79x = 134,479.78
  5. Step 5: Solve for x
    x = 134,479.78/243.79
  6. Step 6: Final answer
    x = 551.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.