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Finding the Fourth Proportional to 484.41, 668.42 and 297.94

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Solution

The fourth proportional to 484.41, 668.42 and 297.94 is: 411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.41 : 668.42 = 297.94 : x
  2. Step 2: Convert to fraction form
    484.41/668.42 = 297.94/x
  3. Step 3: Cross multiply
    484.41x = 668.42 × 297.94
  4. Step 4: Simplify right side
    484.41x = 199,149.05
  5. Step 5: Solve for x
    x = 199,149.05/484.41
  6. Step 6: Final answer
    x = 411.12

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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.