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Finding the Fourth Proportional to 269,856.96, 372,408.42 and 149,005.90

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Solution

The fourth proportional to 269,856.96, 372,408.42 and 149,005.90 is: 205,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,856.96 : 372,408.42 = 149,005.90 : x
  2. Step 2: Convert to fraction form
    269,856.96/372,408.42 = 149,005.90/x
  3. Step 3: Cross multiply
    269,856.96x = 372,408.42 × 149,005.90
  4. Step 4: Simplify right side
    269,856.96x = 55,491,051,789.68
  5. Step 5: Solve for x
    x = 55,491,051,789.68/269,856.96
  6. Step 6: Final answer
    x = 205,631.35

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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.