Home / 551,335.28-827,168.94-172,240.70

Finding the Fourth Proportional to 551,335.28, 827,168.94 and 172,240.70

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Solution

The fourth proportional to 551,335.28, 827,168.94 and 172,240.70 is: 258,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,335.28 : 827,168.94 = 172,240.70 : x
  2. Step 2: Convert to fraction form
    551,335.28/827,168.94 = 172,240.70/x
  3. Step 3: Cross multiply
    551,335.28x = 827,168.94 × 172,240.70
  4. Step 4: Simplify right side
    551,335.28x = 142,472,157,243.86
  5. Step 5: Solve for x
    x = 142,472,157,243.86/551,335.28
  6. Step 6: Final answer
    x = 258,412.92

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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.