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Finding the Fourth Proportional to 325,391.49, 449,027.15 and 189,429.35

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Solution

The fourth proportional to 325,391.49, 449,027.15 and 189,429.35 is: 261,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,391.49 : 449,027.15 = 189,429.35 : x
  2. Step 2: Convert to fraction form
    325,391.49/449,027.15 = 189,429.35/x
  3. Step 3: Cross multiply
    325,391.49x = 449,027.15 × 189,429.35
  4. Step 4: Simplify right side
    325,391.49x = 85,058,917,964.57
  5. Step 5: Solve for x
    x = 85,058,917,964.57/325,391.49
  6. Step 6: Final answer
    x = 261,404.86

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1.5x scale

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.