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Finding the Fourth Proportional to 539,432.62, 809,510.09 and 223,889.83

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Solution

The fourth proportional to 539,432.62, 809,510.09 and 223,889.83 is: 335,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,432.62 : 809,510.09 = 223,889.83 : x
  2. Step 2: Convert to fraction form
    539,432.62/809,510.09 = 223,889.83/x
  3. Step 3: Cross multiply
    539,432.62x = 809,510.09 × 223,889.83
  4. Step 4: Simplify right side
    539,432.62x = 181,241,073,290.16
  5. Step 5: Solve for x
    x = 181,241,073,290.16/539,432.62
  6. Step 6: Final answer
    x = 335,984.64

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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.