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Finding the Fourth Proportional to 394,672.92, 591,910.83 and 154,835.70

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Solution

The fourth proportional to 394,672.92, 591,910.83 and 154,835.70 is: 232,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,672.92 : 591,910.83 = 154,835.70 : x
  2. Step 2: Convert to fraction form
    394,672.92/591,910.83 = 154,835.70/x
  3. Step 3: Cross multiply
    394,672.92x = 591,910.83 × 154,835.70
  4. Step 4: Simplify right side
    394,672.92x = 91,648,927,700.63
  5. Step 5: Solve for x
    x = 91,648,927,700.63/394,672.92
  6. Step 6: Final answer
    x = 232,214.89

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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.