Home / 275,845.03-380,655.54-154,991.41

Finding the Fourth Proportional to 275,845.03, 380,655.54 and 154,991.41

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Solution

The fourth proportional to 275,845.03, 380,655.54 and 154,991.41 is: 213,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,845.03 : 380,655.54 = 154,991.41 : x
  2. Step 2: Convert to fraction form
    275,845.03/380,655.54 = 154,991.41/x
  3. Step 3: Cross multiply
    275,845.03x = 380,655.54 × 154,991.41
  4. Step 4: Simplify right side
    275,845.03x = 58,998,337,917.27
  5. Step 5: Solve for x
    x = 58,998,337,917.27/275,845.03
  6. Step 6: Final answer
    x = 213,882.19

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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.