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Finding the Third Proportional to 136,426 and 279,616

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Solution

The third proportional to 136,426 and 279,616 is: 573,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,426 : 279,616 = 279,616 : x
  2. Step 2: Convert to fraction form
    136,426/279,616 = 279,616/x
  3. Step 3: Cross multiply
    136,426x = 279,616 × 279,616
  4. Step 4: Simplify right side
    136,426x = 78,185,107,456
  5. Step 5: Solve for x
    x = 78,185,107,456/136,426
  6. Step 6: Final answer
    x = 573,095.36

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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.