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Finding the Third Proportional to 77,887 and 170,189

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Solution

The third proportional to 77,887 and 170,189 is: 371,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,887 : 170,189 = 170,189 : x
  2. Step 2: Convert to fraction form
    77,887/170,189 = 170,189/x
  3. Step 3: Cross multiply
    77,887x = 170,189 × 170,189
  4. Step 4: Simplify right side
    77,887x = 28,964,295,721
  5. Step 5: Solve for x
    x = 28,964,295,721/77,887
  6. Step 6: Final answer
    x = 371,875.87

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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.