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Finding the Third Proportional to 111,208 and 163,871

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Solution

The third proportional to 111,208 and 163,871 is: 241,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,208 : 163,871 = 163,871 : x
  2. Step 2: Convert to fraction form
    111,208/163,871 = 163,871/x
  3. Step 3: Cross multiply
    111,208x = 163,871 × 163,871
  4. Step 4: Simplify right side
    111,208x = 26,853,704,641
  5. Step 5: Solve for x
    x = 26,853,704,641/111,208
  6. Step 6: Final answer
    x = 241,472.78

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.