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Finding the Third Proportional to 126,178 and 277,958

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Solution

The third proportional to 126,178 and 277,958 is: 612,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,178 : 277,958 = 277,958 : x
  2. Step 2: Convert to fraction form
    126,178/277,958 = 277,958/x
  3. Step 3: Cross multiply
    126,178x = 277,958 × 277,958
  4. Step 4: Simplify right side
    126,178x = 77,260,649,764
  5. Step 5: Solve for x
    x = 77,260,649,764/126,178
  6. Step 6: Final answer
    x = 612,314.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.