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Finding the Fourth Proportional to 435,644.20, 653,166.60 and 221,998.60

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Solution

The fourth proportional to 435,644.20, 653,166.60 and 221,998.60 is: 332,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,644.20 : 653,166.60 = 221,998.60 : x
  2. Step 2: Convert to fraction form
    435,644.20/653,166.60 = 221,998.60/x
  3. Step 3: Cross multiply
    435,644.20x = 653,166.60 × 221,998.60
  4. Step 4: Simplify right side
    435,644.20x = 145,002,070,766.76
  5. Step 5: Solve for x
    x = 145,002,070,766.76/435,644.20
  6. Step 6: Final answer
    x = 332,845.18

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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.