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Finding the Third Proportional to 102,297.75 and 209,664.75

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Solution

The third proportional to 102,297.75 and 209,664.75 is: 429,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,297.75 : 209,664.75 = 209,664.75 : x
  2. Step 2: Convert to fraction form
    102,297.75/209,664.75 = 209,664.75/x
  3. Step 3: Cross multiply
    102,297.75x = 209,664.75 × 209,664.75
  4. Step 4: Simplify right side
    102,297.75x = 43,959,307,392.56
  5. Step 5: Solve for x
    x = 43,959,307,392.56/102,297.75
  6. Step 6: Final answer
    x = 429,719.20

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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.