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Finding the Fourth Proportional to 208.76, 312.90 and 184.76

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Solution

The fourth proportional to 208.76, 312.90 and 184.76 is: 276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208.76 : 312.90 = 184.76 : x
  2. Step 2: Convert to fraction form
    208.76/312.90 = 184.76/x
  3. Step 3: Cross multiply
    208.76x = 312.90 × 184.76
  4. Step 4: Simplify right side
    208.76x = 57,811.40
  5. Step 5: Solve for x
    x = 57,811.40/208.76
  6. Step 6: Final answer
    x = 276.93

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