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Finding the Fourth Proportional to 559.36, 838.99 and 194.15

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Solution

The fourth proportional to 559.36, 838.99 and 194.15 is: 291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.36 : 838.99 = 194.15 : x
  2. Step 2: Convert to fraction form
    559.36/838.99 = 194.15/x
  3. Step 3: Cross multiply
    559.36x = 838.99 × 194.15
  4. Step 4: Simplify right side
    559.36x = 162,892.25
  5. Step 5: Solve for x
    x = 162,892.25/559.36
  6. Step 6: Final answer
    x = 291.21

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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.