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Finding the Third Proportional to 134,928.75 and 198,018.75

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Solution

The third proportional to 134,928.75 and 198,018.75 is: 290,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,928.75 : 198,018.75 = 198,018.75 : x
  2. Step 2: Convert to fraction form
    134,928.75/198,018.75 = 198,018.75/x
  3. Step 3: Cross multiply
    134,928.75x = 198,018.75 × 198,018.75
  4. Step 4: Simplify right side
    134,928.75x = 39,211,425,351.56
  5. Step 5: Solve for x
    x = 39,211,425,351.56/134,928.75
  6. Step 6: Final answer
    x = 290,608.38

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.