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Finding the Third Proportional to 103,890 and 223,670

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Solution

The third proportional to 103,890 and 223,670 is: 481,550.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,890 : 223,670 = 223,670 : x
  2. Step 2: Convert to fraction form
    103,890/223,670 = 223,670/x
  3. Step 3: Cross multiply
    103,890x = 223,670 × 223,670
  4. Step 4: Simplify right side
    103,890x = 50,028,268,900
  5. Step 5: Solve for x
    x = 50,028,268,900/103,890
  6. Step 6: Final answer
    x = 481,550.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.