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Finding the Fourth Proportional to 446.46, 615.90 and 269.46

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Solution

The fourth proportional to 446.46, 615.90 and 269.46 is: 371.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.46 : 615.90 = 269.46 : x
  2. Step 2: Convert to fraction form
    446.46/615.90 = 269.46/x
  3. Step 3: Cross multiply
    446.46x = 615.90 × 269.46
  4. Step 4: Simplify right side
    446.46x = 165,960.41
  5. Step 5: Solve for x
    x = 165,960.41/446.46
  6. Step 6: Final answer
    x = 371.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.