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Finding the Third Proportional to 117.56 and 270.56

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Solution

The third proportional to 117.56 and 270.56 is: 622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.56 : 270.56 = 270.56 : x
  2. Step 2: Convert to fraction form
    117.56/270.56 = 270.56/x
  3. Step 3: Cross multiply
    117.56x = 270.56 × 270.56
  4. Step 4: Simplify right side
    117.56x = 73,204.07
  5. Step 5: Solve for x
    x = 73,204.07/117.56
  6. Step 6: Final answer
    x = 622.68

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.