Home / 321,172.20-481,758.30-202,458.60

Finding the Fourth Proportional to 321,172.20, 481,758.30 and 202,458.60

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Solution

The fourth proportional to 321,172.20, 481,758.30 and 202,458.60 is: 303,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,172.20 : 481,758.30 = 202,458.60 : x
  2. Step 2: Convert to fraction form
    321,172.20/481,758.30 = 202,458.60/x
  3. Step 3: Cross multiply
    321,172.20x = 481,758.30 × 202,458.60
  4. Step 4: Simplify right side
    321,172.20x = 97,536,110,956.38
  5. Step 5: Solve for x
    x = 97,536,110,956.38/321,172.20
  6. Step 6: Final answer
    x = 303,687.90

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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.