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Finding the Fourth Proportional to 664,321.30, 996,287.55 and 237,807.70

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Solution

The fourth proportional to 664,321.30, 996,287.55 and 237,807.70 is: 356,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,321.30 : 996,287.55 = 237,807.70 : x
  2. Step 2: Convert to fraction form
    664,321.30/996,287.55 = 237,807.70/x
  3. Step 3: Cross multiply
    664,321.30x = 996,287.55 × 237,807.70
  4. Step 4: Simplify right side
    664,321.30x = 236,924,850,804.14
  5. Step 5: Solve for x
    x = 236,924,850,804.14/664,321.30
  6. Step 6: Final answer
    x = 356,641.96

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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.