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Finding the Fourth Proportional to 316.62, 475.69 and 282.06

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Solution

The fourth proportional to 316.62, 475.69 and 282.06 is: 423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.62 : 475.69 = 282.06 : x
  2. Step 2: Convert to fraction form
    316.62/475.69 = 282.06/x
  3. Step 3: Cross multiply
    316.62x = 475.69 × 282.06
  4. Step 4: Simplify right side
    316.62x = 134,173.12
  5. Step 5: Solve for x
    x = 134,173.12/316.62
  6. Step 6: Final answer
    x = 423.77

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