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Finding the Fourth Proportional to 297,454.92, 446,346.09 and 128,976.54

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Solution

The fourth proportional to 297,454.92, 446,346.09 and 128,976.54 is: 193,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,454.92 : 446,346.09 = 128,976.54 : x
  2. Step 2: Convert to fraction form
    297,454.92/446,346.09 = 128,976.54/x
  3. Step 3: Cross multiply
    297,454.92x = 446,346.09 × 128,976.54
  4. Step 4: Simplify right side
    297,454.92x = 57,568,174,330.73
  5. Step 5: Solve for x
    x = 57,568,174,330.73/297,454.92
  6. Step 6: Final answer
    x = 193,535.79

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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.