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Finding the Fourth Proportional to 337.85, 505.85 and 200.55

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Solution

The fourth proportional to 337.85, 505.85 and 200.55 is: 300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.85 : 505.85 = 200.55 : x
  2. Step 2: Convert to fraction form
    337.85/505.85 = 200.55/x
  3. Step 3: Cross multiply
    337.85x = 505.85 × 200.55
  4. Step 4: Simplify right side
    337.85x = 101,447.21
  5. Step 5: Solve for x
    x = 101,447.21/337.85
  6. Step 6: Final answer
    x = 300.28

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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.