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Finding the Third Proportional to 67,140 and 146,268

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Solution

The third proportional to 67,140 and 146,268 is: 318,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,140 : 146,268 = 146,268 : x
  2. Step 2: Convert to fraction form
    67,140/146,268 = 146,268/x
  3. Step 3: Cross multiply
    67,140x = 146,268 × 146,268
  4. Step 4: Simplify right side
    67,140x = 21,394,327,824
  5. Step 5: Solve for x
    x = 21,394,327,824/67,140
  6. Step 6: Final answer
    x = 318,652.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.