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Finding the Fourth Proportional to 219,910.70, 329,866.05 and 166,766.60

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Solution

The fourth proportional to 219,910.70, 329,866.05 and 166,766.60 is: 250,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,910.70 : 329,866.05 = 166,766.60 : x
  2. Step 2: Convert to fraction form
    219,910.70/329,866.05 = 166,766.60/x
  3. Step 3: Cross multiply
    219,910.70x = 329,866.05 × 166,766.60
  4. Step 4: Simplify right side
    219,910.70x = 55,010,639,613.93
  5. Step 5: Solve for x
    x = 55,010,639,613.93/219,910.70
  6. Step 6: Final answer
    x = 250,149.90

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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.