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Finding the Fourth Proportional to 506.94, 760.72 and 198.82

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Solution

The fourth proportional to 506.94, 760.72 and 198.82 is: 298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.94 : 760.72 = 198.82 : x
  2. Step 2: Convert to fraction form
    506.94/760.72 = 198.82/x
  3. Step 3: Cross multiply
    506.94x = 760.72 × 198.82
  4. Step 4: Simplify right side
    506.94x = 151,249.48
  5. Step 5: Solve for x
    x = 151,249.48/506.94
  6. Step 6: Final answer
    x = 298.36

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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.