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Finding the Fourth Proportional to 662.55, 993.87 and 337.83

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Solution

The fourth proportional to 662.55, 993.87 and 337.83 is: 506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.55 : 993.87 = 337.83 : x
  2. Step 2: Convert to fraction form
    662.55/993.87 = 337.83/x
  3. Step 3: Cross multiply
    662.55x = 993.87 × 337.83
  4. Step 4: Simplify right side
    662.55x = 335,759.10
  5. Step 5: Solve for x
    x = 335,759.10/662.55
  6. Step 6: Final answer
    x = 506.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.