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Finding the Fourth Proportional to 445.92, 667.94 and 299.18

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Solution

The fourth proportional to 445.92, 667.94 and 299.18 is: 448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.92 : 667.94 = 299.18 : x
  2. Step 2: Convert to fraction form
    445.92/667.94 = 299.18/x
  3. Step 3: Cross multiply
    445.92x = 667.94 × 299.18
  4. Step 4: Simplify right side
    445.92x = 199,829.45
  5. Step 5: Solve for x
    x = 199,829.45/445.92
  6. Step 6: Final answer
    x = 448.13

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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.