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Finding the Third Proportional to 170,939 and 374,086

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Solution

The third proportional to 170,939 and 374,086 is: 818,656.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,939 : 374,086 = 374,086 : x
  2. Step 2: Convert to fraction form
    170,939/374,086 = 374,086/x
  3. Step 3: Cross multiply
    170,939x = 374,086 × 374,086
  4. Step 4: Simplify right side
    170,939x = 139,940,335,396
  5. Step 5: Solve for x
    x = 139,940,335,396/170,939
  6. Step 6: Final answer
    x = 818,656.57

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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.