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Finding the Third Proportional to 81,153 and 177,057

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Solution

The third proportional to 81,153 and 177,057 is: 386,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,153 : 177,057 = 177,057 : x
  2. Step 2: Convert to fraction form
    81,153/177,057 = 177,057/x
  3. Step 3: Cross multiply
    81,153x = 177,057 × 177,057
  4. Step 4: Simplify right side
    81,153x = 31,349,181,249
  5. Step 5: Solve for x
    x = 31,349,181,249/81,153
  6. Step 6: Final answer
    x = 386,297.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.