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Finding the Third Proportional to 136,784 and 204,630

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Solution

The third proportional to 136,784 and 204,630 is: 306,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,784 : 204,630 = 204,630 : x
  2. Step 2: Convert to fraction form
    136,784/204,630 = 204,630/x
  3. Step 3: Cross multiply
    136,784x = 204,630 × 204,630
  4. Step 4: Simplify right side
    136,784x = 41,873,436,900
  5. Step 5: Solve for x
    x = 41,873,436,900/136,784
  6. Step 6: Final answer
    x = 306,128.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.