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Finding the Fourth Proportional to 315.88, 473.67 and 161.88

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Solution

The fourth proportional to 315.88, 473.67 and 161.88 is: 242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.88 : 473.67 = 161.88 : x
  2. Step 2: Convert to fraction form
    315.88/473.67 = 161.88/x
  3. Step 3: Cross multiply
    315.88x = 473.67 × 161.88
  4. Step 4: Simplify right side
    315.88x = 76,677.70
  5. Step 5: Solve for x
    x = 76,677.70/315.88
  6. Step 6: Final answer
    x = 242.74

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