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Finding the Fourth Proportional to 506.67, 760.01 and 121.92

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Solution

The fourth proportional to 506.67, 760.01 and 121.92 is: 182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.67 : 760.01 = 121.92 : x
  2. Step 2: Convert to fraction form
    506.67/760.01 = 121.92/x
  3. Step 3: Cross multiply
    506.67x = 760.01 × 121.92
  4. Step 4: Simplify right side
    506.67x = 92,661.58
  5. Step 5: Solve for x
    x = 92,661.58/506.67
  6. Step 6: Final answer
    x = 182.88

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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.