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Finding the Fourth Proportional to 328,198.64, 449,960.50 and 322,220.24

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Solution

The fourth proportional to 328,198.64, 449,960.50 and 322,220.24 is: 441,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,198.64 : 449,960.50 = 322,220.24 : x
  2. Step 2: Convert to fraction form
    328,198.64/449,960.50 = 322,220.24/x
  3. Step 3: Cross multiply
    328,198.64x = 449,960.50 × 322,220.24
  4. Step 4: Simplify right side
    328,198.64x = 144,986,380,300.52
  5. Step 5: Solve for x
    x = 144,986,380,300.52/328,198.64
  6. Step 6: Final answer
    x = 441,764.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.