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Finding the Fourth Proportional to 300,978.60, 451,537.32 and 101,293.80

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Solution

The fourth proportional to 300,978.60, 451,537.32 and 101,293.80 is: 151,964.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,978.60 : 451,537.32 = 101,293.80 : x
  2. Step 2: Convert to fraction form
    300,978.60/451,537.32 = 101,293.80/x
  3. Step 3: Cross multiply
    300,978.60x = 451,537.32 × 101,293.80
  4. Step 4: Simplify right side
    300,978.60x = 45,737,930,984.62
  5. Step 5: Solve for x
    x = 45,737,930,984.62/300,978.60
  6. Step 6: Final answer
    x = 151,964.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.