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Finding the Fourth Proportional to 539,382.07, 809,434.29 and 223,839.28

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Solution

The fourth proportional to 539,382.07, 809,434.29 and 223,839.28 is: 335,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,382.07 : 809,434.29 = 223,839.28 : x
  2. Step 2: Convert to fraction form
    539,382.07/809,434.29 = 223,839.28/x
  3. Step 3: Cross multiply
    539,382.07x = 809,434.29 × 223,839.28
  4. Step 4: Simplify right side
    539,382.07x = 181,183,188,680.91
  5. Step 5: Solve for x
    x = 181,183,188,680.91/539,382.07
  6. Step 6: Final answer
    x = 335,908.81

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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.