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Finding the Fourth Proportional to 446.60, 669.80 and 227.09

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Solution

The fourth proportional to 446.60, 669.80 and 227.09 is: 340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.60 : 669.80 = 227.09 : x
  2. Step 2: Convert to fraction form
    446.60/669.80 = 227.09/x
  3. Step 3: Cross multiply
    446.60x = 669.80 × 227.09
  4. Step 4: Simplify right side
    446.60x = 152,104.88
  5. Step 5: Solve for x
    x = 152,104.88/446.60
  6. Step 6: Final answer
    x = 340.58

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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.