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Finding the Fourth Proportional to 321,147.40, 481,202.70 and 268,270.60

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Solution

The fourth proportional to 321,147.40, 481,202.70 and 268,270.60 is: 401,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,147.40 : 481,202.70 = 268,270.60 : x
  2. Step 2: Convert to fraction form
    321,147.40/481,202.70 = 268,270.60/x
  3. Step 3: Cross multiply
    321,147.40x = 481,202.70 × 268,270.60
  4. Step 4: Simplify right side
    321,147.40x = 129,092,537,050.62
  5. Step 5: Solve for x
    x = 129,092,537,050.62/321,147.40
  6. Step 6: Final answer
    x = 401,972.85

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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.