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Finding the Fourth Proportional to 328,067.06, 490,984.77 and 201,640.64

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Solution

The fourth proportional to 328,067.06, 490,984.77 and 201,640.64 is: 301,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,067.06 : 490,984.77 = 201,640.64 : x
  2. Step 2: Convert to fraction form
    328,067.06/490,984.77 = 201,640.64/x
  3. Step 3: Cross multiply
    328,067.06x = 490,984.77 × 201,640.64
  4. Step 4: Simplify right side
    328,067.06x = 99,002,483,253.05
  5. Step 5: Solve for x
    x = 99,002,483,253.05/328,067.06
  6. Step 6: Final answer
    x = 301,775.14

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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.