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Finding the Third Proportional to 136,612 and 279,968

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Solution

The third proportional to 136,612 and 279,968 is: 573,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,612 : 279,968 = 279,968 : x
  2. Step 2: Convert to fraction form
    136,612/279,968 = 279,968/x
  3. Step 3: Cross multiply
    136,612x = 279,968 × 279,968
  4. Step 4: Simplify right side
    136,612x = 78,382,081,024
  5. Step 5: Solve for x
    x = 78,382,081,024/136,612
  6. Step 6: Final answer
    x = 573,756.92

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.