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Finding the Fourth Proportional to 312.24, 468.18 and 95.76

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Solution

The fourth proportional to 312.24, 468.18 and 95.76 is: 143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.24 : 468.18 = 95.76 : x
  2. Step 2: Convert to fraction form
    312.24/468.18 = 95.76/x
  3. Step 3: Cross multiply
    312.24x = 468.18 × 95.76
  4. Step 4: Simplify right side
    312.24x = 44,832.92
  5. Step 5: Solve for x
    x = 44,832.92/312.24
  6. Step 6: Final answer
    x = 143.58

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