Home / 551,335.38-827,117.87-172,240.80

Finding the Fourth Proportional to 551,335.38, 827,117.87 and 172,240.80

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Solution

The fourth proportional to 551,335.38, 827,117.87 and 172,240.80 is: 258,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,335.38 : 827,117.87 = 172,240.80 : x
  2. Step 2: Convert to fraction form
    551,335.38/827,117.87 = 172,240.80/x
  3. Step 3: Cross multiply
    551,335.38x = 827,117.87 × 172,240.80
  4. Step 4: Simplify right side
    551,335.38x = 142,463,439,660.20
  5. Step 5: Solve for x
    x = 142,463,439,660.20/551,335.38
  6. Step 6: Final answer
    x = 258,397.06

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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.