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Finding the Fourth Proportional to 414.02, 571.21 and 258.76

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Solution

The fourth proportional to 414.02, 571.21 and 258.76 is: 357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.02 : 571.21 = 258.76 : x
  2. Step 2: Convert to fraction form
    414.02/571.21 = 258.76/x
  3. Step 3: Cross multiply
    414.02x = 571.21 × 258.76
  4. Step 4: Simplify right side
    414.02x = 147,806.30
  5. Step 5: Solve for x
    x = 147,806.30/414.02
  6. Step 6: Final answer
    x = 357.00

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