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Finding the Fourth Proportional to 351.35, 527.09 and 107.83

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Solution

The fourth proportional to 351.35, 527.09 and 107.83 is: 161.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.35 : 527.09 = 107.83 : x
  2. Step 2: Convert to fraction form
    351.35/527.09 = 107.83/x
  3. Step 3: Cross multiply
    351.35x = 527.09 × 107.83
  4. Step 4: Simplify right side
    351.35x = 56,833.88
  5. Step 5: Solve for x
    x = 56,833.88/351.35
  6. Step 6: Final answer
    x = 161.76

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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.