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Finding the Fourth Proportional to 327,172.62, 490,758.69 and 105,556.62

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Solution

The fourth proportional to 327,172.62, 490,758.69 and 105,556.62 is: 158,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,172.62 : 490,758.69 = 105,556.62 : x
  2. Step 2: Convert to fraction form
    327,172.62/490,758.69 = 105,556.62/x
  3. Step 3: Cross multiply
    327,172.62x = 490,758.69 × 105,556.62
  4. Step 4: Simplify right side
    327,172.62x = 51,802,828,552.03
  5. Step 5: Solve for x
    x = 51,802,828,552.03/327,172.62
  6. Step 6: Final answer
    x = 158,334.85

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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.