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Finding the Fourth Proportional to 337.57, 505.61 and 259.96

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Solution

The fourth proportional to 337.57, 505.61 and 259.96 is: 389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.57 : 505.61 = 259.96 : x
  2. Step 2: Convert to fraction form
    337.57/505.61 = 259.96/x
  3. Step 3: Cross multiply
    337.57x = 505.61 × 259.96
  4. Step 4: Simplify right side
    337.57x = 131,437.73
  5. Step 5: Solve for x
    x = 131,437.73/337.57
  6. Step 6: Final answer
    x = 389.37

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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.