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Finding the Third Proportional to 81,554.75 and 179,666.25

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Solution

The third proportional to 81,554.75 and 179,666.25 is: 395,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,554.75 : 179,666.25 = 179,666.25 : x
  2. Step 2: Convert to fraction form
    81,554.75/179,666.25 = 179,666.25/x
  3. Step 3: Cross multiply
    81,554.75x = 179,666.25 × 179,666.25
  4. Step 4: Simplify right side
    81,554.75x = 32,279,961,389.06
  5. Step 5: Solve for x
    x = 32,279,961,389.06/81,554.75
  6. Step 6: Final answer
    x = 395,807.25

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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.