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Finding the Fourth Proportional to 304.26, 456.27 and 121.62

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Solution

The fourth proportional to 304.26, 456.27 and 121.62 is: 182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.26 : 456.27 = 121.62 : x
  2. Step 2: Convert to fraction form
    304.26/456.27 = 121.62/x
  3. Step 3: Cross multiply
    304.26x = 456.27 × 121.62
  4. Step 4: Simplify right side
    304.26x = 55,491.56
  5. Step 5: Solve for x
    x = 55,491.56/304.26
  6. Step 6: Final answer
    x = 182.38

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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.