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Finding the Fourth Proportional to 438,896.88, 658,099.08 and 139,321.62

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Solution

The fourth proportional to 438,896.88, 658,099.08 and 139,321.62 is: 208,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,896.88 : 658,099.08 = 139,321.62 : x
  2. Step 2: Convert to fraction form
    438,896.88/658,099.08 = 139,321.62/x
  3. Step 3: Cross multiply
    438,896.88x = 658,099.08 × 139,321.62
  4. Step 4: Simplify right side
    438,896.88x = 91,687,429,946.11
  5. Step 5: Solve for x
    x = 91,687,429,946.11/438,896.88
  6. Step 6: Final answer
    x = 208,904.26

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