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Finding the Fourth Proportional to 327,137.40, 490,706.10 and 201,166.20

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Solution

The fourth proportional to 327,137.40, 490,706.10 and 201,166.20 is: 301,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,137.40 : 490,706.10 = 201,166.20 : x
  2. Step 2: Convert to fraction form
    327,137.40/490,706.10 = 201,166.20/x
  3. Step 3: Cross multiply
    327,137.40x = 490,706.10 × 201,166.20
  4. Step 4: Simplify right side
    327,137.40x = 98,713,481,453.82
  5. Step 5: Solve for x
    x = 98,713,481,453.82/327,137.40
  6. Step 6: Final answer
    x = 301,749.30

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Similar ratio
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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.