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Finding the Fourth Proportional to 221,407.92, 332,116.94 and 79,262.91

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Solution

The fourth proportional to 221,407.92, 332,116.94 and 79,262.91 is: 118,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,407.92 : 332,116.94 = 79,262.91 : x
  2. Step 2: Convert to fraction form
    221,407.92/332,116.94 = 79,262.91/x
  3. Step 3: Cross multiply
    221,407.92x = 332,116.94 × 79,262.91
  4. Step 4: Simplify right side
    221,407.92x = 26,324,555,322.85
  5. Step 5: Solve for x
    x = 26,324,555,322.85/221,407.92
  6. Step 6: Final answer
    x = 118,896.18

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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.