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Finding the Fourth Proportional to 216,496.80, 323,870.40 and 187,239.60

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Solution

The fourth proportional to 216,496.80, 323,870.40 and 187,239.60 is: 280,102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,496.80 : 323,870.40 = 187,239.60 : x
  2. Step 2: Convert to fraction form
    216,496.80/323,870.40 = 187,239.60/x
  3. Step 3: Cross multiply
    216,496.80x = 323,870.40 × 187,239.60
  4. Step 4: Simplify right side
    216,496.80x = 60,641,364,147.84
  5. Step 5: Solve for x
    x = 60,641,364,147.84/216,496.80
  6. Step 6: Final answer
    x = 280,102.82

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