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Finding the Fourth Proportional to 300,440.23, 450,648.56 and 75,797.87

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Solution

The fourth proportional to 300,440.23, 450,648.56 and 75,797.87 is: 113,693.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,440.23 : 450,648.56 = 75,797.87 : x
  2. Step 2: Convert to fraction form
    300,440.23/450,648.56 = 75,797.87/x
  3. Step 3: Cross multiply
    300,440.23x = 450,648.56 × 75,797.87
  4. Step 4: Simplify right side
    300,440.23x = 34,158,198,902.82
  5. Step 5: Solve for x
    x = 34,158,198,902.82/300,440.23
  6. Step 6: Final answer
    x = 113,693.83

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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.