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Finding the Fourth Proportional to 221,636.69, 332,501.74 and 71,865.30

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Solution

The fourth proportional to 221,636.69, 332,501.74 and 71,865.30 is: 107,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,636.69 : 332,501.74 = 71,865.30 : x
  2. Step 2: Convert to fraction form
    221,636.69/332,501.74 = 71,865.30/x
  3. Step 3: Cross multiply
    221,636.69x = 332,501.74 × 71,865.30
  4. Step 4: Simplify right side
    221,636.69x = 23,895,337,295.62
  5. Step 5: Solve for x
    x = 23,895,337,295.62/221,636.69
  6. Step 6: Final answer
    x = 107,813.09

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1.5x scale

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.