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Finding the Third Proportional to 188,616 and 272,772

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Solution

The third proportional to 188,616 and 272,772 is: 394,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,616 : 272,772 = 272,772 : x
  2. Step 2: Convert to fraction form
    188,616/272,772 = 272,772/x
  3. Step 3: Cross multiply
    188,616x = 272,772 × 272,772
  4. Step 4: Simplify right side
    188,616x = 74,404,563,984
  5. Step 5: Solve for x
    x = 74,404,563,984/188,616
  6. Step 6: Final answer
    x = 394,476.42

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.