Home / 203,386.88-305,082.92-140,190.04

Finding the Fourth Proportional to 203,386.88, 305,082.92 and 140,190.04

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Solution

The fourth proportional to 203,386.88, 305,082.92 and 140,190.04 is: 210,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,386.88 : 305,082.92 = 140,190.04 : x
  2. Step 2: Convert to fraction form
    203,386.88/305,082.92 = 140,190.04/x
  3. Step 3: Cross multiply
    203,386.88x = 305,082.92 × 140,190.04
  4. Step 4: Simplify right side
    203,386.88x = 42,769,586,758.12
  5. Step 5: Solve for x
    x = 42,769,586,758.12/203,386.88
  6. Step 6: Final answer
    x = 210,286.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.