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Finding the Fourth Proportional to 216,448.40, 324,717.24 and 76,304.72

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Solution

The fourth proportional to 216,448.40, 324,717.24 and 76,304.72 is: 114,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,448.40 : 324,717.24 = 76,304.72 : x
  2. Step 2: Convert to fraction form
    216,448.40/324,717.24 = 76,304.72/x
  3. Step 3: Cross multiply
    216,448.40x = 324,717.24 × 76,304.72
  4. Step 4: Simplify right side
    216,448.40x = 24,777,458,077.37
  5. Step 5: Solve for x
    x = 24,777,458,077.37/216,448.40
  6. Step 6: Final answer
    x = 114,472.82

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