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Finding the Fourth Proportional to 285,611.05, 394,129.46 and 164,791.30

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Solution

The fourth proportional to 285,611.05, 394,129.46 and 164,791.30 is: 227,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,611.05 : 394,129.46 = 164,791.30 : x
  2. Step 2: Convert to fraction form
    285,611.05/394,129.46 = 164,791.30/x
  3. Step 3: Cross multiply
    285,611.05x = 394,129.46 × 164,791.30
  4. Step 4: Simplify right side
    285,611.05x = 64,949,106,081.70
  5. Step 5: Solve for x
    x = 64,949,106,081.70/285,611.05
  6. Step 6: Final answer
    x = 227,404.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.