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Finding the Fourth Proportional to 532.20, 797.59 and 257.75

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Solution

The fourth proportional to 532.20, 797.59 and 257.75 is: 386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.20 : 797.59 = 257.75 : x
  2. Step 2: Convert to fraction form
    532.20/797.59 = 257.75/x
  3. Step 3: Cross multiply
    532.20x = 797.59 × 257.75
  4. Step 4: Simplify right side
    532.20x = 205,578.82
  5. Step 5: Solve for x
    x = 205,578.82/532.20
  6. Step 6: Final answer
    x = 386.28

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