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Finding the Fourth Proportional to 221,490.90, 332,236.35 and 132,698.70

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Solution

The fourth proportional to 221,490.90, 332,236.35 and 132,698.70 is: 199,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,490.90 : 332,236.35 = 132,698.70 : x
  2. Step 2: Convert to fraction form
    221,490.90/332,236.35 = 132,698.70/x
  3. Step 3: Cross multiply
    221,490.90x = 332,236.35 × 132,698.70
  4. Step 4: Simplify right side
    221,490.90x = 44,087,331,737.75
  5. Step 5: Solve for x
    x = 44,087,331,737.75/221,490.90
  6. Step 6: Final answer
    x = 199,048.05

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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.