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Finding the Fourth Proportional to 371,906.46, 513,230.90 and 221,003.46

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Solution

The fourth proportional to 371,906.46, 513,230.90 and 221,003.46 is: 304,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,906.46 : 513,230.90 = 221,003.46 : x
  2. Step 2: Convert to fraction form
    371,906.46/513,230.90 = 221,003.46/x
  3. Step 3: Cross multiply
    371,906.46x = 513,230.90 × 221,003.46
  4. Step 4: Simplify right side
    371,906.46x = 113,425,803,573.90
  5. Step 5: Solve for x
    x = 113,425,803,573.90/371,906.46
  6. Step 6: Final answer
    x = 304,984.76

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