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Finding the Fourth Proportional to 221,474.30, 332,211.45 and 220,162.10

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Solution

The fourth proportional to 221,474.30, 332,211.45 and 220,162.10 is: 330,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,474.30 : 332,211.45 = 220,162.10 : x
  2. Step 2: Convert to fraction form
    221,474.30/332,211.45 = 220,162.10/x
  3. Step 3: Cross multiply
    221,474.30x = 332,211.45 × 220,162.10
  4. Step 4: Simplify right side
    221,474.30x = 73,140,370,476.05
  5. Step 5: Solve for x
    x = 73,140,370,476.05/221,474.30
  6. Step 6: Final answer
    x = 330,243.15

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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.