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Finding the Fourth Proportional to 312.42, 468.23 and 196.86

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Solution

The fourth proportional to 312.42, 468.23 and 196.86 is: 295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.42 : 468.23 = 196.86 : x
  2. Step 2: Convert to fraction form
    312.42/468.23 = 196.86/x
  3. Step 3: Cross multiply
    312.42x = 468.23 × 196.86
  4. Step 4: Simplify right side
    312.42x = 92,174.77
  5. Step 5: Solve for x
    x = 92,174.77/312.42
  6. Step 6: Final answer
    x = 295.03

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