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Finding the Fourth Proportional to 300,338.43, 450,033.42 and 243,903.93

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Solution

The fourth proportional to 300,338.43, 450,033.42 and 243,903.93 is: 365,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,338.43 : 450,033.42 = 243,903.93 : x
  2. Step 2: Convert to fraction form
    300,338.43/450,033.42 = 243,903.93/x
  3. Step 3: Cross multiply
    300,338.43x = 450,033.42 × 243,903.93
  4. Step 4: Simplify right side
    300,338.43x = 109,764,919,769.34
  5. Step 5: Solve for x
    x = 109,764,919,769.34/300,338.43
  6. Step 6: Final answer
    x = 365,470.78

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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.