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Finding the Fourth Proportional to 221,783.70, 332,238.15 and 132,772.80

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Solution

The fourth proportional to 221,783.70, 332,238.15 and 132,772.80 is: 198,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,783.70 : 332,238.15 = 132,772.80 : x
  2. Step 2: Convert to fraction form
    221,783.70/332,238.15 = 132,772.80/x
  3. Step 3: Cross multiply
    221,783.70x = 332,238.15 × 132,772.80
  4. Step 4: Simplify right side
    221,783.70x = 44,112,189,442.32
  5. Step 5: Solve for x
    x = 44,112,189,442.32/221,783.70
  6. Step 6: Final answer
    x = 198,897.35

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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.