Home / 327,627.20-491,440.80-90,972.20

Finding the Fourth Proportional to 327,627.20, 491,440.80 and 90,972.20

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Solution

The fourth proportional to 327,627.20, 491,440.80 and 90,972.20 is: 136,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,627.20 : 491,440.80 = 90,972.20 : x
  2. Step 2: Convert to fraction form
    327,627.20/491,440.80 = 90,972.20/x
  3. Step 3: Cross multiply
    327,627.20x = 491,440.80 × 90,972.20
  4. Step 4: Simplify right side
    327,627.20x = 44,707,450,745.76
  5. Step 5: Solve for x
    x = 44,707,450,745.76/327,627.20
  6. Step 6: Final answer
    x = 136,458.30

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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.