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Finding the Fourth Proportional to 300,638.57, 450,374.22 and 268,697.43

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Solution

The fourth proportional to 300,638.57, 450,374.22 and 268,697.43 is: 402,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,638.57 : 450,374.22 = 268,697.43 : x
  2. Step 2: Convert to fraction form
    300,638.57/450,374.22 = 268,697.43/x
  3. Step 3: Cross multiply
    300,638.57x = 450,374.22 × 268,697.43
  4. Step 4: Simplify right side
    300,638.57x = 121,014,395,452.26
  5. Step 5: Solve for x
    x = 121,014,395,452.26/300,638.57
  6. Step 6: Final answer
    x = 402,524.52

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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.