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Finding the Fourth Proportional to 221,443.56, 332,165.36 and 55,231.56

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Solution

The fourth proportional to 221,443.56, 332,165.36 and 55,231.56 is: 82,847.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,443.56 : 332,165.36 = 55,231.56 : x
  2. Step 2: Convert to fraction form
    221,443.56/332,165.36 = 55,231.56/x
  3. Step 3: Cross multiply
    221,443.56x = 332,165.36 × 55,231.56
  4. Step 4: Simplify right side
    221,443.56x = 18,346,011,010.76
  5. Step 5: Solve for x
    x = 18,346,011,010.76/221,443.56
  6. Step 6: Final answer
    x = 82,847.34

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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.