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Finding the Third Proportional to 63,774 and 140,130

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Solution

The third proportional to 63,774 and 140,130 is: 307,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,774 : 140,130 = 140,130 : x
  2. Step 2: Convert to fraction form
    63,774/140,130 = 140,130/x
  3. Step 3: Cross multiply
    63,774x = 140,130 × 140,130
  4. Step 4: Simplify right side
    63,774x = 19,636,416,900
  5. Step 5: Solve for x
    x = 19,636,416,900/63,774
  6. Step 6: Final answer
    x = 307,906.31

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.