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Finding the Third Proportional to 203.06 and 490.94

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Solution

The third proportional to 203.06 and 490.94 is: 1,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.06 : 490.94 = 490.94 : x
  2. Step 2: Convert to fraction form
    203.06/490.94 = 490.94/x
  3. Step 3: Cross multiply
    203.06x = 490.94 × 490.94
  4. Step 4: Simplify right side
    203.06x = 241,019.63
  5. Step 5: Solve for x
    x = 241,019.63/203.06
  6. Step 6: Final answer
    x = 1,186.92

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.