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Finding the Third Proportional to 138,026 and 297,170

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Solution

The third proportional to 138,026 and 297,170 is: 639,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,026 : 297,170 = 297,170 : x
  2. Step 2: Convert to fraction form
    138,026/297,170 = 297,170/x
  3. Step 3: Cross multiply
    138,026x = 297,170 × 297,170
  4. Step 4: Simplify right side
    138,026x = 88,310,008,900
  5. Step 5: Solve for x
    x = 88,310,008,900/138,026
  6. Step 6: Final answer
    x = 639,807.06

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.