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Finding the Third Proportional to 207,218.25 and 245,490.75

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Solution

The third proportional to 207,218.25 and 245,490.75 is: 290,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,218.25 : 245,490.75 = 245,490.75 : x
  2. Step 2: Convert to fraction form
    207,218.25/245,490.75 = 245,490.75/x
  3. Step 3: Cross multiply
    207,218.25x = 245,490.75 × 245,490.75
  4. Step 4: Simplify right side
    207,218.25x = 60,265,708,335.56
  5. Step 5: Solve for x
    x = 60,265,708,335.56/207,218.25
  6. Step 6: Final answer
    x = 290,832.05

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.