Home / 551,139.43-826,709.20-172,092.63

Finding the Fourth Proportional to 551,139.43, 826,709.20 and 172,092.63

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Solution

The fourth proportional to 551,139.43, 826,709.20 and 172,092.63 is: 258,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,139.43 : 826,709.20 = 172,092.63 : x
  2. Step 2: Convert to fraction form
    551,139.43/826,709.20 = 172,092.63/x
  3. Step 3: Cross multiply
    551,139.43x = 826,709.20 × 172,092.63
  4. Step 4: Simplify right side
    551,139.43x = 142,270,560,473.20
  5. Step 5: Solve for x
    x = 142,270,560,473.20/551,139.43
  6. Step 6: Final answer
    x = 258,138.96

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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.