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Finding the Third Proportional to 138,812 and 300,952

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Solution

The third proportional to 138,812 and 300,952 is: 652,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,812 : 300,952 = 300,952 : x
  2. Step 2: Convert to fraction form
    138,812/300,952 = 300,952/x
  3. Step 3: Cross multiply
    138,812x = 300,952 × 300,952
  4. Step 4: Simplify right side
    138,812x = 90,572,106,304
  5. Step 5: Solve for x
    x = 90,572,106,304/138,812
  6. Step 6: Final answer
    x = 652,480.38

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.