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Finding the Fourth Proportional to 220,154.80, 329,843.40 and 136,951.60

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Solution

The fourth proportional to 220,154.80, 329,843.40 and 136,951.60 is: 205,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,154.80 : 329,843.40 = 136,951.60 : x
  2. Step 2: Convert to fraction form
    220,154.80/329,843.40 = 136,951.60/x
  3. Step 3: Cross multiply
    220,154.80x = 329,843.40 × 136,951.60
  4. Step 4: Simplify right side
    220,154.80x = 45,172,581,379.44
  5. Step 5: Solve for x
    x = 45,172,581,379.44/220,154.80
  6. Step 6: Final answer
    x = 205,185.54

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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.