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Finding the Fourth Proportional to 394,539.54, 591,958.29 and 236,877.90

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Solution

The fourth proportional to 394,539.54, 591,958.29 and 236,877.90 is: 355,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,539.54 : 591,958.29 = 236,877.90 : x
  2. Step 2: Convert to fraction form
    394,539.54/591,958.29 = 236,877.90/x
  3. Step 3: Cross multiply
    394,539.54x = 591,958.29 × 236,877.90
  4. Step 4: Simplify right side
    394,539.54x = 140,221,836,622.79
  5. Step 5: Solve for x
    x = 140,221,836,622.79/394,539.54
  6. Step 6: Final answer
    x = 355,406.30

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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.