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Finding the Fourth Proportional to 221,745.92, 332,411.52 and 81,466.88

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Solution

The fourth proportional to 221,745.92, 332,411.52 and 81,466.88 is: 122,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,745.92 : 332,411.52 = 81,466.88 : x
  2. Step 2: Convert to fraction form
    221,745.92/332,411.52 = 81,466.88/x
  3. Step 3: Cross multiply
    221,745.92x = 332,411.52 × 81,466.88
  4. Step 4: Simplify right side
    221,745.92x = 27,080,529,410.46
  5. Step 5: Solve for x
    x = 27,080,529,410.46/221,745.92
  6. Step 6: Final answer
    x = 122,124.14

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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.