Home / 327,650.40-491,475.78-90,993.06

Finding the Fourth Proportional to 327,650.40, 491,475.78 and 90,993.06

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Solution

The fourth proportional to 327,650.40, 491,475.78 and 90,993.06 is: 136,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,650.40 : 491,475.78 = 90,993.06 : x
  2. Step 2: Convert to fraction form
    327,650.40/491,475.78 = 90,993.06/x
  3. Step 3: Cross multiply
    327,650.40x = 491,475.78 × 90,993.06
  4. Step 4: Simplify right side
    327,650.40x = 44,720,885,138.09
  5. Step 5: Solve for x
    x = 44,720,885,138.09/327,650.40
  6. Step 6: Final answer
    x = 136,489.64

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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.