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Finding the Fourth Proportional to 275.04, 379.68 and 171.84

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Solution

The fourth proportional to 275.04, 379.68 and 171.84 is: 237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.04 : 379.68 = 171.84 : x
  2. Step 2: Convert to fraction form
    275.04/379.68 = 171.84/x
  3. Step 3: Cross multiply
    275.04x = 379.68 × 171.84
  4. Step 4: Simplify right side
    275.04x = 65,244.21
  5. Step 5: Solve for x
    x = 65,244.21/275.04
  6. Step 6: Final answer
    x = 237.22

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