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Finding the Fourth Proportional to 366.67, 506.43 and 331.69

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Solution

The fourth proportional to 366.67, 506.43 and 331.69 is: 458.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.67 : 506.43 = 331.69 : x
  2. Step 2: Convert to fraction form
    366.67/506.43 = 331.69/x
  3. Step 3: Cross multiply
    366.67x = 506.43 × 331.69
  4. Step 4: Simplify right side
    366.67x = 167,977.77
  5. Step 5: Solve for x
    x = 167,977.77/366.67
  6. Step 6: Final answer
    x = 458.12

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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.