Home / 275,945.43-380,808.09-155,079.66

Finding the Fourth Proportional to 275,945.43, 380,808.09 and 155,079.66

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Solution

The fourth proportional to 275,945.43, 380,808.09 and 155,079.66 is: 214,011.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,945.43 : 380,808.09 = 155,079.66 : x
  2. Step 2: Convert to fraction form
    275,945.43/380,808.09 = 155,079.66/x
  3. Step 3: Cross multiply
    275,945.43x = 380,808.09 × 155,079.66
  4. Step 4: Simplify right side
    275,945.43x = 59,055,589,122.45
  5. Step 5: Solve for x
    x = 59,055,589,122.45/275,945.43
  6. Step 6: Final answer
    x = 214,011.84

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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.