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Finding the Fourth Proportional to 443.92, 668.24 and 341.76

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Solution

The fourth proportional to 443.92, 668.24 and 341.76 is: 514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.92 : 668.24 = 341.76 : x
  2. Step 2: Convert to fraction form
    443.92/668.24 = 341.76/x
  3. Step 3: Cross multiply
    443.92x = 668.24 × 341.76
  4. Step 4: Simplify right side
    443.92x = 228,377.70
  5. Step 5: Solve for x
    x = 228,377.70/443.92
  6. Step 6: Final answer
    x = 514.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.