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Finding the Third Proportional to 86,679 and 179,172

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Solution

The third proportional to 86,679 and 179,172 is: 370,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,679 : 179,172 = 179,172 : x
  2. Step 2: Convert to fraction form
    86,679/179,172 = 179,172/x
  3. Step 3: Cross multiply
    86,679x = 179,172 × 179,172
  4. Step 4: Simplify right side
    86,679x = 32,102,605,584
  5. Step 5: Solve for x
    x = 32,102,605,584/86,679
  6. Step 6: Final answer
    x = 370,361.97

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.