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Finding the Fourth Proportional to 203,459.04, 280,806.48 and 194,488.56

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Solution

The fourth proportional to 203,459.04, 280,806.48 and 194,488.56 is: 268,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,459.04 : 280,806.48 = 194,488.56 : x
  2. Step 2: Convert to fraction form
    203,459.04/280,806.48 = 194,488.56/x
  3. Step 3: Cross multiply
    203,459.04x = 280,806.48 × 194,488.56
  4. Step 4: Simplify right side
    203,459.04x = 54,613,647,933.87
  5. Step 5: Solve for x
    x = 54,613,647,933.87/203,459.04
  6. Step 6: Final answer
    x = 268,425.76

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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.