Home / 275,579.93-380,270.85-154,734.50

Finding the Fourth Proportional to 275,579.93, 380,270.85 and 154,734.50

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Solution

The fourth proportional to 275,579.93, 380,270.85 and 154,734.50 is: 213,517.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,579.93 : 380,270.85 = 154,734.50 : x
  2. Step 2: Convert to fraction form
    275,579.93/380,270.85 = 154,734.50/x
  3. Step 3: Cross multiply
    275,579.93x = 380,270.85 × 154,734.50
  4. Step 4: Simplify right side
    275,579.93x = 58,841,019,839.33
  5. Step 5: Solve for x
    x = 58,841,019,839.33/275,579.93
  6. Step 6: Final answer
    x = 213,517.07

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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.