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Finding the Fourth Proportional to 324.99, 487.55 and 108.63

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Solution

The fourth proportional to 324.99, 487.55 and 108.63 is: 162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.99 : 487.55 = 108.63 : x
  2. Step 2: Convert to fraction form
    324.99/487.55 = 108.63/x
  3. Step 3: Cross multiply
    324.99x = 487.55 × 108.63
  4. Step 4: Simplify right side
    324.99x = 52,962.01
  5. Step 5: Solve for x
    x = 52,962.01/324.99
  6. Step 6: Final answer
    x = 162.97

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