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Finding the Fourth Proportional to 324.04, 486.31 and 118.67

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Solution

The fourth proportional to 324.04, 486.31 and 118.67 is: 178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.04 : 486.31 = 118.67 : x
  2. Step 2: Convert to fraction form
    324.04/486.31 = 118.67/x
  3. Step 3: Cross multiply
    324.04x = 486.31 × 118.67
  4. Step 4: Simplify right side
    324.04x = 57,709.60
  5. Step 5: Solve for x
    x = 57,709.60/324.04
  6. Step 6: Final answer
    x = 178.10

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