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Finding the Fourth Proportional to 371,187.78, 512,233.66 and 218,243.17

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Solution

The fourth proportional to 371,187.78, 512,233.66 and 218,243.17 is: 301,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,187.78 : 512,233.66 = 218,243.17 : x
  2. Step 2: Convert to fraction form
    371,187.78/512,233.66 = 218,243.17/x
  3. Step 3: Cross multiply
    371,187.78x = 512,233.66 × 218,243.17
  4. Step 4: Simplify right side
    371,187.78x = 111,791,497,424.58
  5. Step 5: Solve for x
    x = 111,791,497,424.58/371,187.78
  6. Step 6: Final answer
    x = 301,172.36

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