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Finding the Third Proportional to 103,666 and 217,774

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Solution

The third proportional to 103,666 and 217,774 is: 457,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666 : 217,774 = 217,774 : x
  2. Step 2: Convert to fraction form
    103,666/217,774 = 217,774/x
  3. Step 3: Cross multiply
    103,666x = 217,774 × 217,774
  4. Step 4: Simplify right side
    103,666x = 47,425,515,076
  5. Step 5: Solve for x
    x = 47,425,515,076/103,666
  6. Step 6: Final answer
    x = 457,483.79

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.