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Finding the Third Proportional to 103,720 and 227,520

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Solution

The third proportional to 103,720 and 227,520 is: 499,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,720 : 227,520 = 227,520 : x
  2. Step 2: Convert to fraction form
    103,720/227,520 = 227,520/x
  3. Step 3: Cross multiply
    103,720x = 227,520 × 227,520
  4. Step 4: Simplify right side
    103,720x = 51,765,350,400
  5. Step 5: Solve for x
    x = 51,765,350,400/103,720
  6. Step 6: Final answer
    x = 499,087.45

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.