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Finding the Third Proportional to 108,866 and 171,075

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Solution

The third proportional to 108,866 and 171,075 is: 268,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866 : 171,075 = 171,075 : x
  2. Step 2: Convert to fraction form
    108,866/171,075 = 171,075/x
  3. Step 3: Cross multiply
    108,866x = 171,075 × 171,075
  4. Step 4: Simplify right side
    108,866x = 29,266,655,625
  5. Step 5: Solve for x
    x = 29,266,655,625/108,866
  6. Step 6: Final answer
    x = 268,831.92

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.