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Finding the Third Proportional to 27.09 and 58.31

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Solution

The third proportional to 27.09 and 58.31 is: 125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.09 : 58.31 = 58.31 : x
  2. Step 2: Convert to fraction form
    27.09/58.31 = 58.31/x
  3. Step 3: Cross multiply
    27.09x = 58.31 × 58.31
  4. Step 4: Simplify right side
    27.09x = 3,400.35
  5. Step 5: Solve for x
    x = 3,400.35/27.09
  6. Step 6: Final answer
    x = 125.50

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.