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Finding the Third Proportional to 136,761.75 and 207,036

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Solution

The third proportional to 136,761.75 and 207,036 is: 313,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,761.75 : 207,036 = 207,036 : x
  2. Step 2: Convert to fraction form
    136,761.75/207,036 = 207,036/x
  3. Step 3: Cross multiply
    136,761.75x = 207,036 × 207,036
  4. Step 4: Simplify right side
    136,761.75x = 42,863,905,296
  5. Step 5: Solve for x
    x = 42,863,905,296/136,761.75
  6. Step 6: Final answer
    x = 313,420.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.