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Finding the Fourth Proportional to 664,395.20, 996,301.20 and 264,903.20

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Solution

The fourth proportional to 664,395.20, 996,301.20 and 264,903.20 is: 397,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,395.20 : 996,301.20 = 264,903.20 : x
  2. Step 2: Convert to fraction form
    664,395.20/996,301.20 = 264,903.20/x
  3. Step 3: Cross multiply
    664,395.20x = 996,301.20 × 264,903.20
  4. Step 4: Simplify right side
    664,395.20x = 263,923,376,043.84
  5. Step 5: Solve for x
    x = 263,923,376,043.84/664,395.20
  6. Step 6: Final answer
    x = 397,238.54

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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.