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Finding the Fourth Proportional to 354,676.20, 532,014.30 and 221,706.60

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Solution

The fourth proportional to 354,676.20, 532,014.30 and 221,706.60 is: 332,559.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,676.20 : 532,014.30 = 221,706.60 : x
  2. Step 2: Convert to fraction form
    354,676.20/532,014.30 = 221,706.60/x
  3. Step 3: Cross multiply
    354,676.20x = 532,014.30 × 221,706.60
  4. Step 4: Simplify right side
    354,676.20x = 117,951,081,604.38
  5. Step 5: Solve for x
    x = 117,951,081,604.38/354,676.20
  6. Step 6: Final answer
    x = 332,559.90

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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.