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Finding the Fourth Proportional to 300,604.81, 450,929.09 and 100,923.51

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Solution

The fourth proportional to 300,604.81, 450,929.09 and 100,923.51 is: 151,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,604.81 : 450,929.09 = 100,923.51 : x
  2. Step 2: Convert to fraction form
    300,604.81/450,929.09 = 100,923.51/x
  3. Step 3: Cross multiply
    300,604.81x = 450,929.09 × 100,923.51
  4. Step 4: Simplify right side
    300,604.81x = 45,509,346,523.91
  5. Step 5: Solve for x
    x = 45,509,346,523.91/300,604.81
  6. Step 6: Final answer
    x = 151,392.61

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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.