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Finding the Fourth Proportional to 337.87, 506.80 and 155.62

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Solution

The fourth proportional to 337.87, 506.80 and 155.62 is: 233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.87 : 506.80 = 155.62 : x
  2. Step 2: Convert to fraction form
    337.87/506.80 = 155.62/x
  3. Step 3: Cross multiply
    337.87x = 506.80 × 155.62
  4. Step 4: Simplify right side
    337.87x = 78,865.68
  5. Step 5: Solve for x
    x = 78,865.68/337.87
  6. Step 6: Final answer
    x = 233.42

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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.