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Finding the Third Proportional to 200.16 and 427.03

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Solution

The third proportional to 200.16 and 427.03 is: 911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.16 : 427.03 = 427.03 : x
  2. Step 2: Convert to fraction form
    200.16/427.03 = 427.03/x
  3. Step 3: Cross multiply
    200.16x = 427.03 × 427.03
  4. Step 4: Simplify right side
    200.16x = 182,355.69
  5. Step 5: Solve for x
    x = 182,355.69/200.16
  6. Step 6: Final answer
    x = 911.07

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.