Home / 394,422.57-591,431.27-181,006.79

Finding the Fourth Proportional to 394,422.57, 591,431.27 and 181,006.79

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Solution

The fourth proportional to 394,422.57, 591,431.27 and 181,006.79 is: 271,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,422.57 : 591,431.27 = 181,006.79 : x
  2. Step 2: Convert to fraction form
    394,422.57/591,431.27 = 181,006.79/x
  3. Step 3: Cross multiply
    394,422.57x = 591,431.27 × 181,006.79
  4. Step 4: Simplify right side
    394,422.57x = 107,053,071,826.13
  5. Step 5: Solve for x
    x = 107,053,071,826.13/394,422.57
  6. Step 6: Final answer
    x = 271,417.21

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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.