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Finding the Fourth Proportional to 484.43, 668.18 and 344.52

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Solution

The fourth proportional to 484.43, 668.18 and 344.52 is: 475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.43 : 668.18 = 344.52 : x
  2. Step 2: Convert to fraction form
    484.43/668.18 = 344.52/x
  3. Step 3: Cross multiply
    484.43x = 668.18 × 344.52
  4. Step 4: Simplify right side
    484.43x = 230,202.23
  5. Step 5: Solve for x
    x = 230,202.23/484.43
  6. Step 6: Final answer
    x = 475.21

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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.