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Finding the Fourth Proportional to 279,215.40, 419,033.60 and 204,526.92

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Solution

The fourth proportional to 279,215.40, 419,033.60 and 204,526.92 is: 306,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,215.40 : 419,033.60 = 204,526.92 : x
  2. Step 2: Convert to fraction form
    279,215.40/419,033.60 = 204,526.92/x
  3. Step 3: Cross multiply
    279,215.40x = 419,033.60 × 204,526.92
  4. Step 4: Simplify right side
    279,215.40x = 85,703,650,561.88
  5. Step 5: Solve for x
    x = 85,703,650,561.88/279,215.40
  6. Step 6: Final answer
    x = 306,944.57

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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.