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Finding the Third Proportional to 136,869 and 203,305.50

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Solution

The third proportional to 136,869 and 203,305.50 is: 301,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,869 : 203,305.50 = 203,305.50 : x
  2. Step 2: Convert to fraction form
    136,869/203,305.50 = 203,305.50/x
  3. Step 3: Cross multiply
    136,869x = 203,305.50 × 203,305.50
  4. Step 4: Simplify right side
    136,869x = 41,333,126,330.25
  5. Step 5: Solve for x
    x = 41,333,126,330.25/136,869
  6. Step 6: Final answer
    x = 301,990.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.