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Finding the Fourth Proportional to 300,708.92, 450,747.52 and 111,048.40

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Solution

The fourth proportional to 300,708.92, 450,747.52 and 111,048.40 is: 166,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,708.92 : 450,747.52 = 111,048.40 : x
  2. Step 2: Convert to fraction form
    300,708.92/450,747.52 = 111,048.40/x
  3. Step 3: Cross multiply
    300,708.92x = 450,747.52 × 111,048.40
  4. Step 4: Simplify right side
    300,708.92x = 50,054,791,185.78
  5. Step 5: Solve for x
    x = 50,054,791,185.78/300,708.92
  6. Step 6: Final answer
    x = 166,455.96

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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.