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Finding the Third Proportional to 243.56 and 366.56

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Solution

The third proportional to 243.56 and 366.56 is: 551.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.56 : 366.56 = 366.56 : x
  2. Step 2: Convert to fraction form
    243.56/366.56 = 366.56/x
  3. Step 3: Cross multiply
    243.56x = 366.56 × 366.56
  4. Step 4: Simplify right side
    243.56x = 134,368.07
  5. Step 5: Solve for x
    x = 134,368.07/243.56
  6. Step 6: Final answer
    x = 551.68

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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.