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Finding the Fourth Proportional to 487.46, 730.60 and 227.11

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Solution

The fourth proportional to 487.46, 730.60 and 227.11 is: 340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.46 : 730.60 = 227.11 : x
  2. Step 2: Convert to fraction form
    487.46/730.60 = 227.11/x
  3. Step 3: Cross multiply
    487.46x = 730.60 × 227.11
  4. Step 4: Simplify right side
    487.46x = 165,926.57
  5. Step 5: Solve for x
    x = 165,926.57/487.46
  6. Step 6: Final answer
    x = 340.39

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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.