Home / 356,331.09-491,719.43-195,186.86

Finding the Fourth Proportional to 356,331.09, 491,719.43 and 195,186.86

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Solution

The fourth proportional to 356,331.09, 491,719.43 and 195,186.86 is: 269,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,331.09 : 491,719.43 = 195,186.86 : x
  2. Step 2: Convert to fraction form
    356,331.09/491,719.43 = 195,186.86/x
  3. Step 3: Cross multiply
    356,331.09x = 491,719.43 × 195,186.86
  4. Step 4: Simplify right side
    356,331.09x = 95,977,171,542.69
  5. Step 5: Solve for x
    x = 95,977,171,542.69/356,331.09
  6. Step 6: Final answer
    x = 269,348.29

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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.