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Finding the Fourth Proportional to 275,458.73, 380,211.77 and 178,660.49

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Solution

The fourth proportional to 275,458.73, 380,211.77 and 178,660.49 is: 246,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,458.73 : 380,211.77 = 178,660.49 : x
  2. Step 2: Convert to fraction form
    275,458.73/380,211.77 = 178,660.49/x
  3. Step 3: Cross multiply
    275,458.73x = 380,211.77 × 178,660.49
  4. Step 4: Simplify right side
    275,458.73x = 67,928,819,677.56
  5. Step 5: Solve for x
    x = 67,928,819,677.56/275,458.73
  6. Step 6: Final answer
    x = 246,602.53

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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.