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Finding the Fourth Proportional to 394,951.73, 592,489.08 and 128,650.32

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Solution

The fourth proportional to 394,951.73, 592,489.08 and 128,650.32 is: 192,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,951.73 : 592,489.08 = 128,650.32 : x
  2. Step 2: Convert to fraction form
    394,951.73/592,489.08 = 128,650.32/x
  3. Step 3: Cross multiply
    394,951.73x = 592,489.08 × 128,650.32
  4. Step 4: Simplify right side
    394,951.73x = 76,223,909,738.51
  5. Step 5: Solve for x
    x = 76,223,909,738.51/394,951.73
  6. Step 6: Final answer
    x = 192,995.51

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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.