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Finding the Fourth Proportional to 327,175.80, 490,763.70 and 303,556.20

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Solution

The fourth proportional to 327,175.80, 490,763.70 and 303,556.20 is: 455,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,175.80 : 490,763.70 = 303,556.20 : x
  2. Step 2: Convert to fraction form
    327,175.80/490,763.70 = 303,556.20/x
  3. Step 3: Cross multiply
    327,175.80x = 490,763.70 × 303,556.20
  4. Step 4: Simplify right side
    327,175.80x = 148,974,363,869.94
  5. Step 5: Solve for x
    x = 148,974,363,869.94/327,175.80
  6. Step 6: Final answer
    x = 455,334.30

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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.