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Finding the Fourth Proportional to 300,620.50, 450,960.63 and 111,130.54

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Solution

The fourth proportional to 300,620.50, 450,960.63 and 111,130.54 is: 166,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,620.50 : 450,960.63 = 111,130.54 : x
  2. Step 2: Convert to fraction form
    300,620.50/450,960.63 = 111,130.54/x
  3. Step 3: Cross multiply
    300,620.50x = 450,960.63 × 111,130.54
  4. Step 4: Simplify right side
    300,620.50x = 50,115,498,330.64
  5. Step 5: Solve for x
    x = 50,115,498,330.64/300,620.50
  6. Step 6: Final answer
    x = 166,706.86

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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.