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Finding the Fourth Proportional to 480.87, 663.55 and 294.41

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Solution

The fourth proportional to 480.87, 663.55 and 294.41 is: 406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.87 : 663.55 = 294.41 : x
  2. Step 2: Convert to fraction form
    480.87/663.55 = 294.41/x
  3. Step 3: Cross multiply
    480.87x = 663.55 × 294.41
  4. Step 4: Simplify right side
    480.87x = 195,354.19
  5. Step 5: Solve for x
    x = 195,354.19/480.87
  6. Step 6: Final answer
    x = 406.25

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