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Finding the Fourth Proportional to 300,817.53, 450,751.64 and 111,016.71

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Solution

The fourth proportional to 300,817.53, 450,751.64 and 111,016.71 is: 166,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,817.53 : 450,751.64 = 111,016.71 : x
  2. Step 2: Convert to fraction form
    300,817.53/450,751.64 = 111,016.71/x
  3. Step 3: Cross multiply
    300,817.53x = 450,751.64 × 111,016.71
  4. Step 4: Simplify right side
    300,817.53x = 50,040,963,544.82
  5. Step 5: Solve for x
    x = 50,040,963,544.82/300,817.53
  6. Step 6: Final answer
    x = 166,349.89

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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.