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Finding the Fourth Proportional to 488.04, 673.54 and 281

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Solution

The fourth proportional to 488.04, 673.54 and 281 is: 387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.04 : 673.54 = 281 : x
  2. Step 2: Convert to fraction form
    488.04/673.54 = 281/x
  3. Step 3: Cross multiply
    488.04x = 673.54 × 281
  4. Step 4: Simplify right side
    488.04x = 189,264.74
  5. Step 5: Solve for x
    x = 189,264.74/488.04
  6. Step 6: Final answer
    x = 387.81

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