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Finding the Fourth Proportional to 337.53, 505.91 and 131.99

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Solution

The fourth proportional to 337.53, 505.91 and 131.99 is: 197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.53 : 505.91 = 131.99 : x
  2. Step 2: Convert to fraction form
    337.53/505.91 = 131.99/x
  3. Step 3: Cross multiply
    337.53x = 505.91 × 131.99
  4. Step 4: Simplify right side
    337.53x = 66,771.87
  5. Step 5: Solve for x
    x = 66,771.87/337.53
  6. Step 6: Final answer
    x = 197.82

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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.