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Finding the Fourth Proportional to 300,992.05, 451,534.60 and 101,296.78

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Solution

The fourth proportional to 300,992.05, 451,534.60 and 101,296.78 is: 151,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,992.05 : 451,534.60 = 101,296.78 : x
  2. Step 2: Convert to fraction form
    300,992.05/451,534.60 = 101,296.78/x
  3. Step 3: Cross multiply
    300,992.05x = 451,534.60 × 101,296.78
  4. Step 4: Simplify right side
    300,992.05x = 45,739,000,036.37
  5. Step 5: Solve for x
    x = 45,739,000,036.37/300,992.05
  6. Step 6: Final answer
    x = 151,960.82

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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.