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Finding the Fourth Proportional to 275,832.60, 380,660.75 and 154,974.12

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Solution

The fourth proportional to 275,832.60, 380,660.75 and 154,974.12 is: 213,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,832.60 : 380,660.75 = 154,974.12 : x
  2. Step 2: Convert to fraction form
    275,832.60/380,660.75 = 154,974.12/x
  3. Step 3: Cross multiply
    275,832.60x = 380,660.75 × 154,974.12
  4. Step 4: Simplify right side
    275,832.60x = 58,992,566,564.70
  5. Step 5: Solve for x
    x = 58,992,566,564.70/275,832.60
  6. Step 6: Final answer
    x = 213,870.90

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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.