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Finding the Fourth Proportional to 315.77, 474.12 and 194.54

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Solution

The fourth proportional to 315.77, 474.12 and 194.54 is: 292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.77 : 474.12 = 194.54 : x
  2. Step 2: Convert to fraction form
    315.77/474.12 = 194.54/x
  3. Step 3: Cross multiply
    315.77x = 474.12 × 194.54
  4. Step 4: Simplify right side
    315.77x = 92,235.30
  5. Step 5: Solve for x
    x = 92,235.30/315.77
  6. Step 6: Final answer
    x = 292.10

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