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Finding the Fourth Proportional to 221,853.80, 332,999.40 and 109,660.70

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Solution

The fourth proportional to 221,853.80, 332,999.40 and 109,660.70 is: 164,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,853.80 : 332,999.40 = 109,660.70 : x
  2. Step 2: Convert to fraction form
    221,853.80/332,999.40 = 109,660.70/x
  3. Step 3: Cross multiply
    221,853.80x = 332,999.40 × 109,660.70
  4. Step 4: Simplify right side
    221,853.80x = 36,516,947,303.58
  5. Step 5: Solve for x
    x = 36,516,947,303.58/221,853.80
  6. Step 6: Final answer
    x = 164,599.15

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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.