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Finding the Fourth Proportional to 506.22, 759.94 and 343.42

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Solution

The fourth proportional to 506.22, 759.94 and 343.42 is: 515.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.22 : 759.94 = 343.42 : x
  2. Step 2: Convert to fraction form
    506.22/759.94 = 343.42/x
  3. Step 3: Cross multiply
    506.22x = 759.94 × 343.42
  4. Step 4: Simplify right side
    506.22x = 260,978.59
  5. Step 5: Solve for x
    x = 260,978.59/506.22
  6. Step 6: Final answer
    x = 515.54

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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.