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Finding the Fourth Proportional to 378.92, 567.99 and 313.53

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Solution

The fourth proportional to 378.92, 567.99 and 313.53 is: 469.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.92 : 567.99 = 313.53 : x
  2. Step 2: Convert to fraction form
    378.92/567.99 = 313.53/x
  3. Step 3: Cross multiply
    378.92x = 567.99 × 313.53
  4. Step 4: Simplify right side
    378.92x = 178,081.90
  5. Step 5: Solve for x
    x = 178,081.90/378.92
  6. Step 6: Final answer
    x = 469.98

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