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Finding the Fourth Proportional to 300,773, 451,189.98 and 111,283.40

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Solution

The fourth proportional to 300,773, 451,189.98 and 111,283.40 is: 166,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,773 : 451,189.98 = 111,283.40 : x
  2. Step 2: Convert to fraction form
    300,773/451,189.98 = 111,283.40/x
  3. Step 3: Cross multiply
    300,773x = 451,189.98 × 111,283.40
  4. Step 4: Simplify right side
    300,773x = 50,209,955,020.33
  5. Step 5: Solve for x
    x = 50,209,955,020.33/300,773
  6. Step 6: Final answer
    x = 166,936.38

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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.