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Finding the Third Proportional to 136,544 and 212,005

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Solution

The third proportional to 136,544 and 212,005 is: 329,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,544 : 212,005 = 212,005 : x
  2. Step 2: Convert to fraction form
    136,544/212,005 = 212,005/x
  3. Step 3: Cross multiply
    136,544x = 212,005 × 212,005
  4. Step 4: Simplify right side
    136,544x = 44,946,120,025
  5. Step 5: Solve for x
    x = 44,946,120,025/136,544
  6. Step 6: Final answer
    x = 329,169.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.