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Finding the Third Proportional to 79,992 and 172,813

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Solution

The third proportional to 79,992 and 172,813 is: 373,341.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,992 : 172,813 = 172,813 : x
  2. Step 2: Convert to fraction form
    79,992/172,813 = 172,813/x
  3. Step 3: Cross multiply
    79,992x = 172,813 × 172,813
  4. Step 4: Simplify right side
    79,992x = 29,864,332,969
  5. Step 5: Solve for x
    x = 29,864,332,969/79,992
  6. Step 6: Final answer
    x = 373,341.50

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.