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Finding the Third Proportional to 105,860 and 220,432

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Solution

The third proportional to 105,860 and 220,432 is: 459,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,860 : 220,432 = 220,432 : x
  2. Step 2: Convert to fraction form
    105,860/220,432 = 220,432/x
  3. Step 3: Cross multiply
    105,860x = 220,432 × 220,432
  4. Step 4: Simplify right side
    105,860x = 48,590,266,624
  5. Step 5: Solve for x
    x = 48,590,266,624/105,860
  6. Step 6: Final answer
    x = 459,004.97

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.