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Finding the Fourth Proportional to 220,791.03, 330,965.11 and 102,545.41

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Solution

The fourth proportional to 220,791.03, 330,965.11 and 102,545.41 is: 153,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,791.03 : 330,965.11 = 102,545.41 : x
  2. Step 2: Convert to fraction form
    220,791.03/330,965.11 = 102,545.41/x
  3. Step 3: Cross multiply
    220,791.03x = 330,965.11 × 102,545.41
  4. Step 4: Simplify right side
    220,791.03x = 33,938,952,245.16
  5. Step 5: Solve for x
    x = 33,938,952,245.16/220,791.03
  6. Step 6: Final answer
    x = 153,715.27

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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.