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Finding the Third Proportional to 201.38 and 314.44

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Solution

The third proportional to 201.38 and 314.44 is: 490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.38 : 314.44 = 314.44 : x
  2. Step 2: Convert to fraction form
    201.38/314.44 = 314.44/x
  3. Step 3: Cross multiply
    201.38x = 314.44 × 314.44
  4. Step 4: Simplify right side
    201.38x = 98,870.94
  5. Step 5: Solve for x
    x = 98,870.94/201.38
  6. Step 6: Final answer
    x = 490.98

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.