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Finding the Fourth Proportional to 276,716.30, 415,074.52 and 213,628.52

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Solution

The fourth proportional to 276,716.30, 415,074.52 and 213,628.52 is: 320,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,716.30 : 415,074.52 = 213,628.52 : x
  2. Step 2: Convert to fraction form
    276,716.30/415,074.52 = 213,628.52/x
  3. Step 3: Cross multiply
    276,716.30x = 415,074.52 × 213,628.52
  4. Step 4: Simplify right side
    276,716.30x = 88,671,755,397.31
  5. Step 5: Solve for x
    x = 88,671,755,397.31/276,716.30
  6. Step 6: Final answer
    x = 320,442.83

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