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Finding the Fourth Proportional to 331,551.96, 457,542.72 and 188,313.18

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Solution

The fourth proportional to 331,551.96, 457,542.72 and 188,313.18 is: 259,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,551.96 : 457,542.72 = 188,313.18 : x
  2. Step 2: Convert to fraction form
    331,551.96/457,542.72 = 188,313.18/x
  3. Step 3: Cross multiply
    331,551.96x = 457,542.72 × 188,313.18
  4. Step 4: Simplify right side
    331,551.96x = 86,161,324,589.05
  5. Step 5: Solve for x
    x = 86,161,324,589.05/331,551.96
  6. Step 6: Final answer
    x = 259,872.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.