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Finding the Fourth Proportional to 337.17, 505.49 and 105.91

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Solution

The fourth proportional to 337.17, 505.49 and 105.91 is: 158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.17 : 505.49 = 105.91 : x
  2. Step 2: Convert to fraction form
    337.17/505.49 = 105.91/x
  3. Step 3: Cross multiply
    337.17x = 505.49 × 105.91
  4. Step 4: Simplify right side
    337.17x = 53,538.09
  5. Step 5: Solve for x
    x = 53,538.09/337.17
  6. Step 6: Final answer
    x = 158.79

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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.