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Finding the Fourth Proportional to 367.20, 506.43 and 242.87

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Solution

The fourth proportional to 367.20, 506.43 and 242.87 is: 334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.20 : 506.43 = 242.87 : x
  2. Step 2: Convert to fraction form
    367.20/506.43 = 242.87/x
  3. Step 3: Cross multiply
    367.20x = 506.43 × 242.87
  4. Step 4: Simplify right side
    367.20x = 122,994.12
  5. Step 5: Solve for x
    x = 122,994.12/367.20
  6. Step 6: Final answer
    x = 334.95

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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.