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Finding the Fourth Proportional to 328,172.73, 492,342.11 and 91,515.44

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Solution

The fourth proportional to 328,172.73, 492,342.11 and 91,515.44 is: 137,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,172.73 : 492,342.11 = 91,515.44 : x
  2. Step 2: Convert to fraction form
    328,172.73/492,342.11 = 91,515.44/x
  3. Step 3: Cross multiply
    328,172.73x = 492,342.11 × 91,515.44
  4. Step 4: Simplify right side
    328,172.73x = 45,056,901,907.89
  5. Step 5: Solve for x
    x = 45,056,901,907.89/328,172.73
  6. Step 6: Final answer
    x = 137,296.30

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