Home / 275,436.11-380,109.37-154,584.88

Finding the Fourth Proportional to 275,436.11, 380,109.37 and 154,584.88

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Solution

The fourth proportional to 275,436.11, 380,109.37 and 154,584.88 is: 213,331.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,436.11 : 380,109.37 = 154,584.88 : x
  2. Step 2: Convert to fraction form
    275,436.11/380,109.37 = 154,584.88/x
  3. Step 3: Cross multiply
    275,436.11x = 380,109.37 × 154,584.88
  4. Step 4: Simplify right side
    275,436.11x = 58,759,161,348.33
  5. Step 5: Solve for x
    x = 58,759,161,348.33/275,436.11
  6. Step 6: Final answer
    x = 213,331.37

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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.