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Finding the Fourth Proportional to 286,149.33, 394,814.93 and 158,793.03

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Solution

The fourth proportional to 286,149.33, 394,814.93 and 158,793.03 is: 219,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,149.33 : 394,814.93 = 158,793.03 : x
  2. Step 2: Convert to fraction form
    286,149.33/394,814.93 = 158,793.03/x
  3. Step 3: Cross multiply
    286,149.33x = 394,814.93 × 158,793.03
  4. Step 4: Simplify right side
    286,149.33x = 62,693,858,229.97
  5. Step 5: Solve for x
    x = 62,693,858,229.97/286,149.33
  6. Step 6: Final answer
    x = 219,094.90

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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.