Home / 310,002.62-427,789.05-172,190.49

Finding the Fourth Proportional to 310,002.62, 427,789.05 and 172,190.49

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Solution

The fourth proportional to 310,002.62, 427,789.05 and 172,190.49 is: 237,614.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,002.62 : 427,789.05 = 172,190.49 : x
  2. Step 2: Convert to fraction form
    310,002.62/427,789.05 = 172,190.49/x
  3. Step 3: Cross multiply
    310,002.62x = 427,789.05 × 172,190.49
  4. Step 4: Simplify right side
    310,002.62x = 73,661,206,136.13
  5. Step 5: Solve for x
    x = 73,661,206,136.13/310,002.62
  6. Step 6: Final answer
    x = 237,614.79

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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.