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Finding the Fourth Proportional to 664,757.80, 996,942.30 and 238,244.20

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Solution

The fourth proportional to 664,757.80, 996,942.30 and 238,244.20 is: 357,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,757.80 : 996,942.30 = 238,244.20 : x
  2. Step 2: Convert to fraction form
    664,757.80/996,942.30 = 238,244.20/x
  3. Step 3: Cross multiply
    664,757.80x = 996,942.30 × 238,244.20
  4. Step 4: Simplify right side
    664,757.80x = 237,515,720,709.66
  5. Step 5: Solve for x
    x = 237,515,720,709.66/664,757.80
  6. Step 6: Final answer
    x = 357,296.63

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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.