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Finding the Third Proportional to 153.88 and 327.13

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Solution

The third proportional to 153.88 and 327.13 is: 695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.88 : 327.13 = 327.13 : x
  2. Step 2: Convert to fraction form
    153.88/327.13 = 327.13/x
  3. Step 3: Cross multiply
    153.88x = 327.13 × 327.13
  4. Step 4: Simplify right side
    153.88x = 107,010.77
  5. Step 5: Solve for x
    x = 107,010.77/153.88
  6. Step 6: Final answer
    x = 695.44

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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.