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Finding the Third Proportional to 63,888 and 140,332

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Solution

The third proportional to 63,888 and 140,332 is: 308,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,888 : 140,332 = 140,332 : x
  2. Step 2: Convert to fraction form
    63,888/140,332 = 140,332/x
  3. Step 3: Cross multiply
    63,888x = 140,332 × 140,332
  4. Step 4: Simplify right side
    63,888x = 19,693,070,224
  5. Step 5: Solve for x
    x = 19,693,070,224/63,888
  6. Step 6: Final answer
    x = 308,243.65

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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.