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Finding the Fourth Proportional to 540,383.95, 809,874.87 and 220,163.41

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Solution

The fourth proportional to 540,383.95, 809,874.87 and 220,163.41 is: 329,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,383.95 : 809,874.87 = 220,163.41 : x
  2. Step 2: Convert to fraction form
    540,383.95/809,874.87 = 220,163.41/x
  3. Step 3: Cross multiply
    540,383.95x = 809,874.87 × 220,163.41
  4. Step 4: Simplify right side
    540,383.95x = 178,304,813,052.51
  5. Step 5: Solve for x
    x = 178,304,813,052.51/540,383.95
  6. Step 6: Final answer
    x = 329,959.49

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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.