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Finding the Third Proportional to 90,320.06 and 196,728.75

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Solution

The third proportional to 90,320.06 and 196,728.75 is: 428,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,320.06 : 196,728.75 = 196,728.75 : x
  2. Step 2: Convert to fraction form
    90,320.06/196,728.75 = 196,728.75/x
  3. Step 3: Cross multiply
    90,320.06x = 196,728.75 × 196,728.75
  4. Step 4: Simplify right side
    90,320.06x = 38,702,201,076.56
  5. Step 5: Solve for x
    x = 38,702,201,076.56/90,320.06
  6. Step 6: Final answer
    x = 428,500.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.