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Finding the Fourth Proportional to 394,239.60, 591,035.40 and 169,772.40

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Solution

The fourth proportional to 394,239.60, 591,035.40 and 169,772.40 is: 254,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,239.60 : 591,035.40 = 169,772.40 : x
  2. Step 2: Convert to fraction form
    394,239.60/591,035.40 = 169,772.40/x
  3. Step 3: Cross multiply
    394,239.60x = 591,035.40 × 169,772.40
  4. Step 4: Simplify right side
    394,239.60x = 100,341,498,342.96
  5. Step 5: Solve for x
    x = 100,341,498,342.96/394,239.60
  6. Step 6: Final answer
    x = 254,519.08

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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.