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Finding the Fourth Proportional to 357.78, 493.27 and 263.18

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Solution

The fourth proportional to 357.78, 493.27 and 263.18 is: 362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.78 : 493.27 = 263.18 : x
  2. Step 2: Convert to fraction form
    357.78/493.27 = 263.18/x
  3. Step 3: Cross multiply
    357.78x = 493.27 × 263.18
  4. Step 4: Simplify right side
    357.78x = 129,818.80
  5. Step 5: Solve for x
    x = 129,818.80/357.78
  6. Step 6: Final answer
    x = 362.85

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