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Finding the Fourth Proportional to 394,663.68, 591,720.92 and 169,956.72

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Solution

The fourth proportional to 394,663.68, 591,720.92 and 169,956.72 is: 254,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,663.68 : 591,720.92 = 169,956.72 : x
  2. Step 2: Convert to fraction form
    394,663.68/591,720.92 = 169,956.72/x
  3. Step 3: Cross multiply
    394,663.68x = 591,720.92 × 169,956.72
  4. Step 4: Simplify right side
    394,663.68x = 100,566,946,718.58
  5. Step 5: Solve for x
    x = 100,566,946,718.58/394,663.68
  6. Step 6: Final answer
    x = 254,816.83

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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.