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Finding the Fourth Proportional to 568.24, 851.83 and 259.79

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Solution

The fourth proportional to 568.24, 851.83 and 259.79 is: 389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.24 : 851.83 = 259.79 : x
  2. Step 2: Convert to fraction form
    568.24/851.83 = 259.79/x
  3. Step 3: Cross multiply
    568.24x = 851.83 × 259.79
  4. Step 4: Simplify right side
    568.24x = 221,292.01
  5. Step 5: Solve for x
    x = 221,292.01/568.24
  6. Step 6: Final answer
    x = 389.44

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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.