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Finding the Fourth Proportional to 300,974.40, 451,315.80 and 167,713.20

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Solution

The fourth proportional to 300,974.40, 451,315.80 and 167,713.20 is: 251,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,974.40 : 451,315.80 = 167,713.20 : x
  2. Step 2: Convert to fraction form
    300,974.40/451,315.80 = 167,713.20/x
  3. Step 3: Cross multiply
    300,974.40x = 451,315.80 × 167,713.20
  4. Step 4: Simplify right side
    300,974.40x = 75,691,617,028.56
  5. Step 5: Solve for x
    x = 75,691,617,028.56/300,974.40
  6. Step 6: Final answer
    x = 251,488.56

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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.