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Finding the Fourth Proportional to 300,137.76, 450,230.22 and 100,458.84

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Solution

The fourth proportional to 300,137.76, 450,230.22 and 100,458.84 is: 150,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,137.76 : 450,230.22 = 100,458.84 : x
  2. Step 2: Convert to fraction form
    300,137.76/450,230.22 = 100,458.84/x
  3. Step 3: Cross multiply
    300,137.76x = 450,230.22 × 100,458.84
  4. Step 4: Simplify right side
    300,137.76x = 45,229,605,634.14
  5. Step 5: Solve for x
    x = 45,229,605,634.14/300,137.76
  6. Step 6: Final answer
    x = 150,696.15

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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.