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Finding the Fourth Proportional to 281,545.44, 388,540.59 and 171,163.90

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Solution

The fourth proportional to 281,545.44, 388,540.59 and 171,163.90 is: 236,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,545.44 : 388,540.59 = 171,163.90 : x
  2. Step 2: Convert to fraction form
    281,545.44/388,540.59 = 171,163.90/x
  3. Step 3: Cross multiply
    281,545.44x = 388,540.59 × 171,163.90
  4. Step 4: Simplify right side
    281,545.44x = 66,504,122,692.70
  5. Step 5: Solve for x
    x = 66,504,122,692.70/281,545.44
  6. Step 6: Final answer
    x = 236,210.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.