Home / 275,759.23-380,533.12-154,905.61

Finding the Fourth Proportional to 275,759.23, 380,533.12 and 154,905.61

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Solution

The fourth proportional to 275,759.23, 380,533.12 and 154,905.61 is: 213,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,759.23 : 380,533.12 = 154,905.61 : x
  2. Step 2: Convert to fraction form
    275,759.23/380,533.12 = 154,905.61/x
  3. Step 3: Cross multiply
    275,759.23x = 380,533.12 × 154,905.61
  4. Step 4: Simplify right side
    275,759.23x = 58,946,715,078.80
  5. Step 5: Solve for x
    x = 58,946,715,078.80/275,759.23
  6. Step 6: Final answer
    x = 213,761.53

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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.