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Finding the Third Proportional to 270.21 and 362.39

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Solution

The third proportional to 270.21 and 362.39 is: 486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.21 : 362.39 = 362.39 : x
  2. Step 2: Convert to fraction form
    270.21/362.39 = 362.39/x
  3. Step 3: Cross multiply
    270.21x = 362.39 × 362.39
  4. Step 4: Simplify right side
    270.21x = 131,326.97
  5. Step 5: Solve for x
    x = 131,326.97/270.21
  6. Step 6: Final answer
    x = 486.02

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.