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Finding the Fourth Proportional to 300,385.12, 450,560.40 and 100,697.44

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Solution

The fourth proportional to 300,385.12, 450,560.40 and 100,697.44 is: 151,040.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,385.12 : 450,560.40 = 100,697.44 : x
  2. Step 2: Convert to fraction form
    300,385.12/450,560.40 = 100,697.44/x
  3. Step 3: Cross multiply
    300,385.12x = 450,560.40 × 100,697.44
  4. Step 4: Simplify right side
    300,385.12x = 45,370,278,845.38
  5. Step 5: Solve for x
    x = 45,370,278,845.38/300,385.12
  6. Step 6: Final answer
    x = 151,040.37

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1.5x scale

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.