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Finding the Third Proportional to 243.47 and 499.76

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Solution

The third proportional to 243.47 and 499.76 is: 1,025.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.47 : 499.76 = 499.76 : x
  2. Step 2: Convert to fraction form
    243.47/499.76 = 499.76/x
  3. Step 3: Cross multiply
    243.47x = 499.76 × 499.76
  4. Step 4: Simplify right side
    243.47x = 249,763.73
  5. Step 5: Solve for x
    x = 249,763.73/243.47
  6. Step 6: Final answer
    x = 1,025.83

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.