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Finding the Fourth Proportional to 489.08, 733.63 and 164.45

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Solution

The fourth proportional to 489.08, 733.63 and 164.45 is: 246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.08 : 733.63 = 164.45 : x
  2. Step 2: Convert to fraction form
    489.08/733.63 = 164.45/x
  3. Step 3: Cross multiply
    489.08x = 733.63 × 164.45
  4. Step 4: Simplify right side
    489.08x = 120,645.45
  5. Step 5: Solve for x
    x = 120,645.45/489.08
  6. Step 6: Final answer
    x = 246.68

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