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Finding the Third Proportional to 90,410.25 and 196,888.13

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Solution

The third proportional to 90,410.25 and 196,888.13 is: 428,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410.25 : 196,888.13 = 196,888.13 : x
  2. Step 2: Convert to fraction form
    90,410.25/196,888.13 = 196,888.13/x
  3. Step 3: Cross multiply
    90,410.25x = 196,888.13 × 196,888.13
  4. Step 4: Simplify right side
    90,410.25x = 38,764,933,766.02
  5. Step 5: Solve for x
    x = 38,764,933,766.02/90,410.25
  6. Step 6: Final answer
    x = 428,767.02

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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.