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Finding the Fourth Proportional to 300,871.85, 451,870.08 and 264,861.19

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Solution

The fourth proportional to 300,871.85, 451,870.08 and 264,861.19 is: 397,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,871.85 : 451,870.08 = 264,861.19 : x
  2. Step 2: Convert to fraction form
    300,871.85/451,870.08 = 264,861.19/x
  3. Step 3: Cross multiply
    300,871.85x = 451,870.08 × 264,861.19
  4. Step 4: Simplify right side
    300,871.85x = 119,682,847,803.19
  5. Step 5: Solve for x
    x = 119,682,847,803.19/300,871.85
  6. Step 6: Final answer
    x = 397,786.78

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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.