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Finding the Third Proportional to 303,621.75 and 445,579.31

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Solution

The third proportional to 303,621.75 and 445,579.31 is: 653,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,621.75 : 445,579.31 = 445,579.31 : x
  2. Step 2: Convert to fraction form
    303,621.75/445,579.31 = 445,579.31/x
  3. Step 3: Cross multiply
    303,621.75x = 445,579.31 × 445,579.31
  4. Step 4: Simplify right side
    303,621.75x = 198,540,923,727.97
  5. Step 5: Solve for x
    x = 198,540,923,727.97/303,621.75
  6. Step 6: Final answer
    x = 653,908.77

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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.