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Finding the Fourth Proportional to 275.33, 412.98 and 82.95

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Solution

The fourth proportional to 275.33, 412.98 and 82.95 is: 124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.33 : 412.98 = 82.95 : x
  2. Step 2: Convert to fraction form
    275.33/412.98 = 82.95/x
  3. Step 3: Cross multiply
    275.33x = 412.98 × 82.95
  4. Step 4: Simplify right side
    275.33x = 34,256.69
  5. Step 5: Solve for x
    x = 34,256.69/275.33
  6. Step 6: Final answer
    x = 124.42

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