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Finding the Fourth Proportional to 368.44, 507.17 and 318.62

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Solution

The fourth proportional to 368.44, 507.17 and 318.62 is: 438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.44 : 507.17 = 318.62 : x
  2. Step 2: Convert to fraction form
    368.44/507.17 = 318.62/x
  3. Step 3: Cross multiply
    368.44x = 507.17 × 318.62
  4. Step 4: Simplify right side
    368.44x = 161,594.18
  5. Step 5: Solve for x
    x = 161,594.18/368.44
  6. Step 6: Final answer
    x = 438.59

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