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Finding the Fourth Proportional to 315.28, 473.99 and 251.08

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Solution

The fourth proportional to 315.28, 473.99 and 251.08 is: 377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.28 : 473.99 = 251.08 : x
  2. Step 2: Convert to fraction form
    315.28/473.99 = 251.08/x
  3. Step 3: Cross multiply
    315.28x = 473.99 × 251.08
  4. Step 4: Simplify right side
    315.28x = 119,009.64
  5. Step 5: Solve for x
    x = 119,009.64/315.28
  6. Step 6: Final answer
    x = 377.48

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