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Finding the Fourth Proportional to 367.26, 506.88 and 279.78

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Solution

The fourth proportional to 367.26, 506.88 and 279.78 is: 386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.26 : 506.88 = 279.78 : x
  2. Step 2: Convert to fraction form
    367.26/506.88 = 279.78/x
  3. Step 3: Cross multiply
    367.26x = 506.88 × 279.78
  4. Step 4: Simplify right side
    367.26x = 141,814.89
  5. Step 5: Solve for x
    x = 141,814.89/367.26
  6. Step 6: Final answer
    x = 386.14

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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.