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Finding the Third Proportional to 79,272 and 176,040

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Solution

The third proportional to 79,272 and 176,040 is: 390,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,272 : 176,040 = 176,040 : x
  2. Step 2: Convert to fraction form
    79,272/176,040 = 176,040/x
  3. Step 3: Cross multiply
    79,272x = 176,040 × 176,040
  4. Step 4: Simplify right side
    79,272x = 30,990,081,600
  5. Step 5: Solve for x
    x = 30,990,081,600/79,272
  6. Step 6: Final answer
    x = 390,933.51

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.