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Finding the Third Proportional to 129,859 and 202,994

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Solution

The third proportional to 129,859 and 202,994 is: 317,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,859 : 202,994 = 202,994 : x
  2. Step 2: Convert to fraction form
    129,859/202,994 = 202,994/x
  3. Step 3: Cross multiply
    129,859x = 202,994 × 202,994
  4. Step 4: Simplify right side
    129,859x = 41,206,564,036
  5. Step 5: Solve for x
    x = 41,206,564,036/129,859
  6. Step 6: Final answer
    x = 317,317.74

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.