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Finding the Fourth Proportional to 315.75, 473.29 and 132.99

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Solution

The fourth proportional to 315.75, 473.29 and 132.99 is: 199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.75 : 473.29 = 132.99 : x
  2. Step 2: Convert to fraction form
    315.75/473.29 = 132.99/x
  3. Step 3: Cross multiply
    315.75x = 473.29 × 132.99
  4. Step 4: Simplify right side
    315.75x = 62,944.14
  5. Step 5: Solve for x
    x = 62,944.14/315.75
  6. Step 6: Final answer
    x = 199.35

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