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Finding the Fourth Proportional to 328,199.64, 449,961.87 and 322,221.24

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Solution

The fourth proportional to 328,199.64, 449,961.87 and 322,221.24 is: 441,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,199.64 : 449,961.87 = 322,221.24 : x
  2. Step 2: Convert to fraction form
    328,199.64/449,961.87 = 322,221.24/x
  3. Step 3: Cross multiply
    328,199.64x = 449,961.87 × 322,221.24
  4. Step 4: Simplify right side
    328,199.64x = 144,987,271,704.12
  5. Step 5: Solve for x
    x = 144,987,271,704.12/328,199.64
  6. Step 6: Final answer
    x = 441,765.48

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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.