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Finding the Fourth Proportional to 482.80, 723.48 and 266.08

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Solution

The fourth proportional to 482.80, 723.48 and 266.08 is: 398.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.80 : 723.48 = 266.08 : x
  2. Step 2: Convert to fraction form
    482.80/723.48 = 266.08/x
  3. Step 3: Cross multiply
    482.80x = 723.48 × 266.08
  4. Step 4: Simplify right side
    482.80x = 192,503.56
  5. Step 5: Solve for x
    x = 192,503.56/482.80
  6. Step 6: Final answer
    x = 398.72

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