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Finding the Third Proportional to 73,478 and 107,211

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Solution

The third proportional to 73,478 and 107,211 is: 156,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,478 : 107,211 = 107,211 : x
  2. Step 2: Convert to fraction form
    73,478/107,211 = 107,211/x
  3. Step 3: Cross multiply
    73,478x = 107,211 × 107,211
  4. Step 4: Simplify right side
    73,478x = 11,494,198,521
  5. Step 5: Solve for x
    x = 11,494,198,521/73,478
  6. Step 6: Final answer
    x = 156,430.48

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.