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Finding the Third Proportional to 156,968 and 322,278

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Solution

The third proportional to 156,968 and 322,278 is: 661,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968 : 322,278 = 322,278 : x
  2. Step 2: Convert to fraction form
    156,968/322,278 = 322,278/x
  3. Step 3: Cross multiply
    156,968x = 322,278 × 322,278
  4. Step 4: Simplify right side
    156,968x = 103,863,109,284
  5. Step 5: Solve for x
    x = 103,863,109,284/156,968
  6. Step 6: Final answer
    x = 661,683.33

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.