Home / 285,979.20-394,650.09-158,654.79

Finding the Fourth Proportional to 285,979.20, 394,650.09 and 158,654.79

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Solution

The fourth proportional to 285,979.20, 394,650.09 and 158,654.79 is: 218,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,979.20 : 394,650.09 = 158,654.79 : x
  2. Step 2: Convert to fraction form
    285,979.20/394,650.09 = 158,654.79/x
  3. Step 3: Cross multiply
    285,979.20x = 394,650.09 × 158,654.79
  4. Step 4: Simplify right side
    285,979.20x = 62,613,127,152.43
  5. Step 5: Solve for x
    x = 62,613,127,152.43/285,979.20
  6. Step 6: Final answer
    x = 218,942.94

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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.