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Finding the Fourth Proportional to 506.96, 760.44 and 122.21

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Solution

The fourth proportional to 506.96, 760.44 and 122.21 is: 183.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.96 : 760.44 = 122.21 : x
  2. Step 2: Convert to fraction form
    506.96/760.44 = 122.21/x
  3. Step 3: Cross multiply
    506.96x = 760.44 × 122.21
  4. Step 4: Simplify right side
    506.96x = 92,932.19
  5. Step 5: Solve for x
    x = 92,932.19/506.96
  6. Step 6: Final answer
    x = 183.31

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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.