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Finding the Fourth Proportional to 559.56, 839.34 and 194.15

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Solution

The fourth proportional to 559.56, 839.34 and 194.15 is: 291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.56 : 839.34 = 194.15 : x
  2. Step 2: Convert to fraction form
    559.56/839.34 = 194.15/x
  3. Step 3: Cross multiply
    559.56x = 839.34 × 194.15
  4. Step 4: Simplify right side
    559.56x = 162,957.86
  5. Step 5: Solve for x
    x = 162,957.86/559.56
  6. Step 6: Final answer
    x = 291.23

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Similar ratio
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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.