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Finding the Fourth Proportional to 315.94, 473.19 and 251.86

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Solution

The fourth proportional to 315.94, 473.19 and 251.86 is: 377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.94 : 473.19 = 251.86 : x
  2. Step 2: Convert to fraction form
    315.94/473.19 = 251.86/x
  3. Step 3: Cross multiply
    315.94x = 473.19 × 251.86
  4. Step 4: Simplify right side
    315.94x = 119,177.63
  5. Step 5: Solve for x
    x = 119,177.63/315.94
  6. Step 6: Final answer
    x = 377.22

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