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Finding the Fourth Proportional to 559.35, 836.60 and 327.69

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Solution

The fourth proportional to 559.35, 836.60 and 327.69 is: 490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.35 : 836.60 = 327.69 : x
  2. Step 2: Convert to fraction form
    559.35/836.60 = 327.69/x
  3. Step 3: Cross multiply
    559.35x = 836.60 × 327.69
  4. Step 4: Simplify right side
    559.35x = 274,143.82
  5. Step 5: Solve for x
    x = 274,143.82/559.35
  6. Step 6: Final answer
    x = 490.11

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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.