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Finding the Fourth Proportional to 318.44, 475.66 and 246.26

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Solution

The fourth proportional to 318.44, 475.66 and 246.26 is: 367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318.44 : 475.66 = 246.26 : x
  2. Step 2: Convert to fraction form
    318.44/475.66 = 246.26/x
  3. Step 3: Cross multiply
    318.44x = 475.66 × 246.26
  4. Step 4: Simplify right side
    318.44x = 117,136.03
  5. Step 5: Solve for x
    x = 117,136.03/318.44
  6. Step 6: Final answer
    x = 367.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.