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Finding the Fourth Proportional to 625.74, 938.24 and 260.80

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Solution

The fourth proportional to 625.74, 938.24 and 260.80 is: 391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.74 : 938.24 = 260.80 : x
  2. Step 2: Convert to fraction form
    625.74/938.24 = 260.80/x
  3. Step 3: Cross multiply
    625.74x = 938.24 × 260.80
  4. Step 4: Simplify right side
    625.74x = 244,692.99
  5. Step 5: Solve for x
    x = 244,692.99/625.74
  6. Step 6: Final answer
    x = 391.05

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