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Finding the Fourth Proportional to 539,381.07, 809,432.79 and 223,838.28

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Solution

The fourth proportional to 539,381.07, 809,432.79 and 223,838.28 is: 335,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,381.07 : 809,432.79 = 223,838.28 : x
  2. Step 2: Convert to fraction form
    539,381.07/809,432.79 = 223,838.28/x
  3. Step 3: Cross multiply
    539,381.07x = 809,432.79 × 223,838.28
  4. Step 4: Simplify right side
    539,381.07x = 181,182,043,489.20
  5. Step 5: Solve for x
    x = 181,182,043,489.20/539,381.07
  6. Step 6: Final answer
    x = 335,907.31

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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.