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Finding the Fourth Proportional to 367.66, 551.36 and 264.64

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Solution

The fourth proportional to 367.66, 551.36 and 264.64 is: 396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.66 : 551.36 = 264.64 : x
  2. Step 2: Convert to fraction form
    367.66/551.36 = 264.64/x
  3. Step 3: Cross multiply
    367.66x = 551.36 × 264.64
  4. Step 4: Simplify right side
    367.66x = 145,911.91
  5. Step 5: Solve for x
    x = 145,911.91/367.66
  6. Step 6: Final answer
    x = 396.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.