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Finding the Fourth Proportional to 220,681.32, 331,071.18 and 80,439.94

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Solution

The fourth proportional to 220,681.32, 331,071.18 and 80,439.94 is: 120,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,681.32 : 331,071.18 = 80,439.94 : x
  2. Step 2: Convert to fraction form
    220,681.32/331,071.18 = 80,439.94/x
  3. Step 3: Cross multiply
    220,681.32x = 331,071.18 × 80,439.94
  4. Step 4: Simplify right side
    220,681.32x = 26,631,345,854.93
  5. Step 5: Solve for x
    x = 26,631,345,854.93/220,681.32
  6. Step 6: Final answer
    x = 120,677.84

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