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Finding the Fourth Proportional to 664,757.30, 996,941.55 and 238,243.70

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Solution

The fourth proportional to 664,757.30, 996,941.55 and 238,243.70 is: 357,295.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,757.30 : 996,941.55 = 238,243.70 : x
  2. Step 2: Convert to fraction form
    664,757.30/996,941.55 = 238,243.70/x
  3. Step 3: Cross multiply
    664,757.30x = 996,941.55 × 238,243.70
  4. Step 4: Simplify right side
    664,757.30x = 237,515,043,555.74
  5. Step 5: Solve for x
    x = 237,515,043,555.74/664,757.30
  6. Step 6: Final answer
    x = 357,295.88

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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.