Home / 331,709.10-457,758.68-188,469.33

Finding the Fourth Proportional to 331,709.10, 457,758.68 and 188,469.33

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Solution

The fourth proportional to 331,709.10, 457,758.68 and 188,469.33 is: 260,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,709.10 : 457,758.68 = 188,469.33 : x
  2. Step 2: Convert to fraction form
    331,709.10/457,758.68 = 188,469.33/x
  3. Step 3: Cross multiply
    331,709.10x = 457,758.68 × 188,469.33
  4. Step 4: Simplify right side
    331,709.10x = 86,273,471,721.28
  5. Step 5: Solve for x
    x = 86,273,471,721.28/331,709.10
  6. Step 6: Final answer
    x = 260,087.74

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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.