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Finding the Fourth Proportional to 221,669.05, 332,550.30 and 71,897.69

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Solution

The fourth proportional to 221,669.05, 332,550.30 and 71,897.69 is: 107,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,669.05 : 332,550.30 = 71,897.69 : x
  2. Step 2: Convert to fraction form
    221,669.05/332,550.30 = 71,897.69/x
  3. Step 3: Cross multiply
    221,669.05x = 332,550.30 × 71,897.69
  4. Step 4: Simplify right side
    221,669.05x = 23,909,599,479.80
  5. Step 5: Solve for x
    x = 23,909,599,479.80/221,669.05
  6. Step 6: Final answer
    x = 107,861.70

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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.