Home / 331,789.78-457,902.75-195,868.54

Finding the Fourth Proportional to 331,789.78, 457,902.75 and 195,868.54

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Solution

The fourth proportional to 331,789.78, 457,902.75 and 195,868.54 is: 270,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,789.78 : 457,902.75 = 195,868.54 : x
  2. Step 2: Convert to fraction form
    331,789.78/457,902.75 = 195,868.54/x
  3. Step 3: Cross multiply
    331,789.78x = 457,902.75 × 195,868.54
  4. Step 4: Simplify right side
    331,789.78x = 89,688,743,104.49
  5. Step 5: Solve for x
    x = 89,688,743,104.49/331,789.78
  6. Step 6: Final answer
    x = 270,317.98

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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.