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Finding the Fourth Proportional to 367.52, 506.81 and 315.26

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Solution

The fourth proportional to 367.52, 506.81 and 315.26 is: 434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.52 : 506.81 = 315.26 : x
  2. Step 2: Convert to fraction form
    367.52/506.81 = 315.26/x
  3. Step 3: Cross multiply
    367.52x = 506.81 × 315.26
  4. Step 4: Simplify right side
    367.52x = 159,772.81
  5. Step 5: Solve for x
    x = 159,772.81/367.52
  6. Step 6: Final answer
    x = 434.73

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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.