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Finding the Third Proportional to 203.75 and 446.50

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Solution

The third proportional to 203.75 and 446.50 is: 978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.75 : 446.50 = 446.50 : x
  2. Step 2: Convert to fraction form
    203.75/446.50 = 446.50/x
  3. Step 3: Cross multiply
    203.75x = 446.50 × 446.50
  4. Step 4: Simplify right side
    203.75x = 199,362.25
  5. Step 5: Solve for x
    x = 199,362.25/203.75
  6. Step 6: Final answer
    x = 978.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.