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Finding the Third Proportional to 76,318 and 154,705

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Solution

The third proportional to 76,318 and 154,705 is: 313,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,318 : 154,705 = 154,705 : x
  2. Step 2: Convert to fraction form
    76,318/154,705 = 154,705/x
  3. Step 3: Cross multiply
    76,318x = 154,705 × 154,705
  4. Step 4: Simplify right side
    76,318x = 23,933,637,025
  5. Step 5: Solve for x
    x = 23,933,637,025/76,318
  6. Step 6: Final answer
    x = 313,604.09

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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.