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Finding the Fourth Proportional to 293,891.28, 440,487 and 204,661.68

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Solution

The fourth proportional to 293,891.28, 440,487 and 204,661.68 is: 306,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,891.28 : 440,487 = 204,661.68 : x
  2. Step 2: Convert to fraction form
    293,891.28/440,487 = 204,661.68/x
  3. Step 3: Cross multiply
    293,891.28x = 440,487 × 204,661.68
  4. Step 4: Simplify right side
    293,891.28x = 90,150,809,438.16
  5. Step 5: Solve for x
    x = 90,150,809,438.16/293,891.28
  6. Step 6: Final answer
    x = 306,748.84

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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.