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Finding the Fourth Proportional to 559.98, 839.97 and 235.57

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Solution

The fourth proportional to 559.98, 839.97 and 235.57 is: 353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.98 : 839.97 = 235.57 : x
  2. Step 2: Convert to fraction form
    559.98/839.97 = 235.57/x
  3. Step 3: Cross multiply
    559.98x = 839.97 × 235.57
  4. Step 4: Simplify right side
    559.98x = 197,871.73
  5. Step 5: Solve for x
    x = 197,871.73/559.98
  6. Step 6: Final answer
    x = 353.36

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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.