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Finding the Fourth Proportional to 506.83, 759.89 and 259.43

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Solution

The fourth proportional to 506.83, 759.89 and 259.43 is: 388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.83 : 759.89 = 259.43 : x
  2. Step 2: Convert to fraction form
    506.83/759.89 = 259.43/x
  3. Step 3: Cross multiply
    506.83x = 759.89 × 259.43
  4. Step 4: Simplify right side
    506.83x = 197,134.46
  5. Step 5: Solve for x
    x = 197,134.46/506.83
  6. Step 6: Final answer
    x = 388.96

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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.