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Finding the Third Proportional to 85,134 and 172,700

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Solution

The third proportional to 85,134 and 172,700 is: 350,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,134 : 172,700 = 172,700 : x
  2. Step 2: Convert to fraction form
    85,134/172,700 = 172,700/x
  3. Step 3: Cross multiply
    85,134x = 172,700 × 172,700
  4. Step 4: Simplify right side
    85,134x = 29,825,290,000
  5. Step 5: Solve for x
    x = 29,825,290,000/85,134
  6. Step 6: Final answer
    x = 350,333.47

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.