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Finding the Fourth Proportional to 367.08, 506.08 and 330.64

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Solution

The fourth proportional to 367.08, 506.08 and 330.64 is: 455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.08 : 506.08 = 330.64 : x
  2. Step 2: Convert to fraction form
    367.08/506.08 = 330.64/x
  3. Step 3: Cross multiply
    367.08x = 506.08 × 330.64
  4. Step 4: Simplify right side
    367.08x = 167,330.29
  5. Step 5: Solve for x
    x = 167,330.29/367.08
  6. Step 6: Final answer
    x = 455.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.