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Finding the Third Proportional to 136,311.61 and 279,235.48

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Solution

The third proportional to 136,311.61 and 279,235.48 is: 572,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,311.61 : 279,235.48 = 279,235.48 : x
  2. Step 2: Convert to fraction form
    136,311.61/279,235.48 = 279,235.48/x
  3. Step 3: Cross multiply
    136,311.61x = 279,235.48 × 279,235.48
  4. Step 4: Simplify right side
    136,311.61x = 77,972,451,371.09
  5. Step 5: Solve for x
    x = 77,972,451,371.09/136,311.61
  6. Step 6: Final answer
    x = 572,016.22

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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.