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Finding the Fourth Proportional to 316.08, 435.96 and 191.76

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Solution

The fourth proportional to 316.08, 435.96 and 191.76 is: 264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.08 : 435.96 = 191.76 : x
  2. Step 2: Convert to fraction form
    316.08/435.96 = 191.76/x
  3. Step 3: Cross multiply
    316.08x = 435.96 × 191.76
  4. Step 4: Simplify right side
    316.08x = 83,599.69
  5. Step 5: Solve for x
    x = 83,599.69/316.08
  6. Step 6: Final answer
    x = 264.49

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