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Finding the Fourth Proportional to 664,311.80, 996,273.30 and 237,798.20

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Solution

The fourth proportional to 664,311.80, 996,273.30 and 237,798.20 is: 356,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,311.80 : 996,273.30 = 237,798.20 : x
  2. Step 2: Convert to fraction form
    664,311.80/996,273.30 = 237,798.20/x
  3. Step 3: Cross multiply
    664,311.80x = 996,273.30 × 237,798.20
  4. Step 4: Simplify right side
    664,311.80x = 236,911,997,448.06
  5. Step 5: Solve for x
    x = 236,911,997,448.06/664,311.80
  6. Step 6: Final answer
    x = 356,627.71

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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.