Home / 285,602.48-394,141.92-172,403.36

Finding the Fourth Proportional to 285,602.48, 394,141.92 and 172,403.36

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Solution

The fourth proportional to 285,602.48, 394,141.92 and 172,403.36 is: 237,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,602.48 : 394,141.92 = 172,403.36 : x
  2. Step 2: Convert to fraction form
    285,602.48/394,141.92 = 172,403.36/x
  3. Step 3: Cross multiply
    285,602.48x = 394,141.92 × 172,403.36
  4. Step 4: Simplify right side
    285,602.48x = 67,951,391,324.85
  5. Step 5: Solve for x
    x = 67,951,391,324.85/285,602.48
  6. Step 6: Final answer
    x = 237,922.97

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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.