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Finding the Third Proportional to 77,892 and 170,200

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Solution

The third proportional to 77,892 and 170,200 is: 371,900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,892 : 170,200 = 170,200 : x
  2. Step 2: Convert to fraction form
    77,892/170,200 = 170,200/x
  3. Step 3: Cross multiply
    77,892x = 170,200 × 170,200
  4. Step 4: Simplify right side
    77,892x = 28,968,040,000
  5. Step 5: Solve for x
    x = 28,968,040,000/77,892
  6. Step 6: Final answer
    x = 371,900.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.