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Finding the Third Proportional to 138,280 and 301,589

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Solution

The third proportional to 138,280 and 301,589 is: 657,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,280 : 301,589 = 301,589 : x
  2. Step 2: Convert to fraction form
    138,280/301,589 = 301,589/x
  3. Step 3: Cross multiply
    138,280x = 301,589 × 301,589
  4. Step 4: Simplify right side
    138,280x = 90,955,924,921
  5. Step 5: Solve for x
    x = 90,955,924,921/138,280
  6. Step 6: Final answer
    x = 657,766.31

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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.