Home / 328,380.03-491,857.21-201,635.55

Finding the Fourth Proportional to 328,380.03, 491,857.21 and 201,635.55

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Solution

The fourth proportional to 328,380.03, 491,857.21 and 201,635.55 is: 302,015.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,380.03 : 491,857.21 = 201,635.55 : x
  2. Step 2: Convert to fraction form
    328,380.03/491,857.21 = 201,635.55/x
  3. Step 3: Cross multiply
    328,380.03x = 491,857.21 × 201,635.55
  4. Step 4: Simplify right side
    328,380.03x = 99,175,899,059.82
  5. Step 5: Solve for x
    x = 99,175,899,059.82/328,380.03
  6. Step 6: Final answer
    x = 302,015.62

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1.5x scale

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.