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Finding the Fourth Proportional to 664,096.80, 996,015.60 and 220,864.80

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Solution

The fourth proportional to 664,096.80, 996,015.60 and 220,864.80 is: 331,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,096.80 : 996,015.60 = 220,864.80 : x
  2. Step 2: Convert to fraction form
    664,096.80/996,015.60 = 220,864.80/x
  3. Step 3: Cross multiply
    664,096.80x = 996,015.60 × 220,864.80
  4. Step 4: Simplify right side
    664,096.80x = 219,984,786,290.88
  5. Step 5: Solve for x
    x = 219,984,786,290.88/664,096.80
  6. Step 6: Final answer
    x = 331,254.10

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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.