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Finding the Fourth Proportional to 327.66, 451.56 and 275.25

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Solution

The fourth proportional to 327.66, 451.56 and 275.25 is: 379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.66 : 451.56 = 275.25 : x
  2. Step 2: Convert to fraction form
    327.66/451.56 = 275.25/x
  3. Step 3: Cross multiply
    327.66x = 451.56 × 275.25
  4. Step 4: Simplify right side
    327.66x = 124,291.89
  5. Step 5: Solve for x
    x = 124,291.89/327.66
  6. Step 6: Final answer
    x = 379.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.