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Finding the Fourth Proportional to 300,859.28, 451,172.24 and 160,541.36

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Solution

The fourth proportional to 300,859.28, 451,172.24 and 160,541.36 is: 240,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,859.28 : 451,172.24 = 160,541.36 : x
  2. Step 2: Convert to fraction form
    300,859.28/451,172.24 = 160,541.36/x
  3. Step 3: Cross multiply
    300,859.28x = 451,172.24 × 160,541.36
  4. Step 4: Simplify right side
    300,859.28x = 72,431,805,003.85
  5. Step 5: Solve for x
    x = 72,431,805,003.85/300,859.28
  6. Step 6: Final answer
    x = 240,749.78

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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.