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Finding the Fourth Proportional to 300,757.63, 451,101.32 and 120,835.77

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Solution

The fourth proportional to 300,757.63, 451,101.32 and 120,835.77 is: 181,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,757.63 : 451,101.32 = 120,835.77 : x
  2. Step 2: Convert to fraction form
    300,757.63/451,101.32 = 120,835.77/x
  3. Step 3: Cross multiply
    300,757.63x = 451,101.32 × 120,835.77
  4. Step 4: Simplify right side
    300,757.63x = 54,509,175,652.31
  5. Step 5: Solve for x
    x = 54,509,175,652.31/300,757.63
  6. Step 6: Final answer
    x = 181,239.55

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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.