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Finding the Fourth Proportional to 273.60, 409.50 and 227.61

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Solution

The fourth proportional to 273.60, 409.50 and 227.61 is: 340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.60 : 409.50 = 227.61 : x
  2. Step 2: Convert to fraction form
    273.60/409.50 = 227.61/x
  3. Step 3: Cross multiply
    273.60x = 409.50 × 227.61
  4. Step 4: Simplify right side
    273.60x = 93,206.30
  5. Step 5: Solve for x
    x = 93,206.30/273.60
  6. Step 6: Final answer
    x = 340.67

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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.