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Finding the Fourth Proportional to 300,212.82, 450,319.14 and 113,180.58

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Solution

The fourth proportional to 300,212.82, 450,319.14 and 113,180.58 is: 169,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,212.82 : 450,319.14 = 113,180.58 : x
  2. Step 2: Convert to fraction form
    300,212.82/450,319.14 = 113,180.58/x
  3. Step 3: Cross multiply
    300,212.82x = 450,319.14 × 113,180.58
  4. Step 4: Simplify right side
    300,212.82x = 50,967,381,450.30
  5. Step 5: Solve for x
    x = 50,967,381,450.30/300,212.82
  6. Step 6: Final answer
    x = 169,770.84

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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.