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Finding the Fourth Proportional to 354.35, 531.59 and 110.82

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Solution

The fourth proportional to 354.35, 531.59 and 110.82 is: 166.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.35 : 531.59 = 110.82 : x
  2. Step 2: Convert to fraction form
    354.35/531.59 = 110.82/x
  3. Step 3: Cross multiply
    354.35x = 531.59 × 110.82
  4. Step 4: Simplify right side
    354.35x = 58,910.80
  5. Step 5: Solve for x
    x = 58,910.80/354.35
  6. Step 6: Final answer
    x = 166.25

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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.