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Finding the Fourth Proportional to 424.27, 636.47 and 150.37

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Solution

The fourth proportional to 424.27, 636.47 and 150.37 is: 225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.27 : 636.47 = 150.37 : x
  2. Step 2: Convert to fraction form
    424.27/636.47 = 150.37/x
  3. Step 3: Cross multiply
    424.27x = 636.47 × 150.37
  4. Step 4: Simplify right side
    424.27x = 95,705.99
  5. Step 5: Solve for x
    x = 95,705.99/424.27
  6. Step 6: Final answer
    x = 225.58

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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.