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Finding the Third Proportional to 88.31 and 188.44

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Solution

The third proportional to 88.31 and 188.44 is: 402.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.31 : 188.44 = 188.44 : x
  2. Step 2: Convert to fraction form
    88.31/188.44 = 188.44/x
  3. Step 3: Cross multiply
    88.31x = 188.44 × 188.44
  4. Step 4: Simplify right side
    88.31x = 35,508.69
  5. Step 5: Solve for x
    x = 35,508.69/88.31
  6. Step 6: Final answer
    x = 402.08

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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.