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Finding the Fourth Proportional to 506.50, 759.96 and 263.19

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Solution

The fourth proportional to 506.50, 759.96 and 263.19 is: 394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.50 : 759.96 = 263.19 : x
  2. Step 2: Convert to fraction form
    506.50/759.96 = 263.19/x
  3. Step 3: Cross multiply
    506.50x = 759.96 × 263.19
  4. Step 4: Simplify right side
    506.50x = 200,013.87
  5. Step 5: Solve for x
    x = 200,013.87/506.50
  6. Step 6: Final answer
    x = 394.89

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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.