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Finding the Fourth Proportional to 442,361.52, 663,143.76 and 300,255.12

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Solution

The fourth proportional to 442,361.52, 663,143.76 and 300,255.12 is: 450,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,361.52 : 663,143.76 = 300,255.12 : x
  2. Step 2: Convert to fraction form
    442,361.52/663,143.76 = 300,255.12/x
  3. Step 3: Cross multiply
    442,361.52x = 663,143.76 × 300,255.12
  4. Step 4: Simplify right side
    442,361.52x = 199,112,309,236.05
  5. Step 5: Solve for x
    x = 199,112,309,236.05/442,361.52
  6. Step 6: Final answer
    x = 450,112.18

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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.