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Finding the Fourth Proportional to 221,339.94, 332,009.19 and 132,620.10

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Solution

The fourth proportional to 221,339.94, 332,009.19 and 132,620.10 is: 198,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,339.94 : 332,009.19 = 132,620.10 : x
  2. Step 2: Convert to fraction form
    221,339.94/332,009.19 = 132,620.10/x
  3. Step 3: Cross multiply
    221,339.94x = 332,009.19 × 132,620.10
  4. Step 4: Simplify right side
    221,339.94x = 44,031,091,978.72
  5. Step 5: Solve for x
    x = 44,031,091,978.72/221,339.94
  6. Step 6: Final answer
    x = 198,929.72

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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.