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Finding the Fourth Proportional to 664,453.30, 996,485.55 and 237,939.70

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Solution

The fourth proportional to 664,453.30, 996,485.55 and 237,939.70 is: 356,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,453.30 : 996,485.55 = 237,939.70 : x
  2. Step 2: Convert to fraction form
    664,453.30/996,485.55 = 237,939.70/x
  3. Step 3: Cross multiply
    664,453.30x = 996,485.55 × 237,939.70
  4. Step 4: Simplify right side
    664,453.30x = 237,103,472,821.34
  5. Step 5: Solve for x
    x = 237,103,472,821.34/664,453.30
  6. Step 6: Final answer
    x = 356,839.94

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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.