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Finding the Fourth Proportional to 561.94, 842.91 and 196.83

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Solution

The fourth proportional to 561.94, 842.91 and 196.83 is: 295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.94 : 842.91 = 196.83 : x
  2. Step 2: Convert to fraction form
    561.94/842.91 = 196.83/x
  3. Step 3: Cross multiply
    561.94x = 842.91 × 196.83
  4. Step 4: Simplify right side
    561.94x = 165,909.24
  5. Step 5: Solve for x
    x = 165,909.24/561.94
  6. Step 6: Final answer
    x = 295.25

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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.