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Finding the Third Proportional to 88.28 and 207.88

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Solution

The third proportional to 88.28 and 207.88 is: 489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.28 : 207.88 = 207.88 : x
  2. Step 2: Convert to fraction form
    88.28/207.88 = 207.88/x
  3. Step 3: Cross multiply
    88.28x = 207.88 × 207.88
  4. Step 4: Simplify right side
    88.28x = 43,213.64
  5. Step 5: Solve for x
    x = 43,213.64/88.28
  6. Step 6: Final answer
    x = 489.52

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.