Home / 203,921.37-281,298.14-189,488.43

Finding the Fourth Proportional to 203,921.37, 281,298.14 and 189,488.43

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Solution

The fourth proportional to 203,921.37, 281,298.14 and 189,488.43 is: 261,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,921.37 : 281,298.14 = 189,488.43 : x
  2. Step 2: Convert to fraction form
    203,921.37/281,298.14 = 189,488.43/x
  3. Step 3: Cross multiply
    203,921.37x = 281,298.14 × 189,488.43
  4. Step 4: Simplify right side
    203,921.37x = 53,302,744,439.11
  5. Step 5: Solve for x
    x = 53,302,744,439.11/203,921.37
  6. Step 6: Final answer
    x = 261,388.71

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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.