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Finding the Fourth Proportional to 484.67, 668.11 and 379.52

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Solution

The fourth proportional to 484.67, 668.11 and 379.52 is: 523.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.67 : 668.11 = 379.52 : x
  2. Step 2: Convert to fraction form
    484.67/668.11 = 379.52/x
  3. Step 3: Cross multiply
    484.67x = 668.11 × 379.52
  4. Step 4: Simplify right side
    484.67x = 253,561.11
  5. Step 5: Solve for x
    x = 253,561.11/484.67
  6. Step 6: Final answer
    x = 523.16

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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.