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Finding the Third Proportional to 203,640.75 and 315,002.25

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Solution

The third proportional to 203,640.75 and 315,002.25 is: 487,262.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,640.75 : 315,002.25 = 315,002.25 : x
  2. Step 2: Convert to fraction form
    203,640.75/315,002.25 = 315,002.25/x
  3. Step 3: Cross multiply
    203,640.75x = 315,002.25 × 315,002.25
  4. Step 4: Simplify right side
    203,640.75x = 99,226,417,505.06
  5. Step 5: Solve for x
    x = 99,226,417,505.06/203,640.75
  6. Step 6: Final answer
    x = 487,262.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.