Finding the Fourth Proportional to 378,822.12, 568,325.74 and 126,102.12
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Solution
The fourth proportional to 378,822.12, 568,325.74 and 126,102.12 is: 189,183.99
Step by Step Solution
- Step 1: Write the proportion equation
378,822.12 : 568,325.74 = 126,102.12 : x - Step 2: Convert to fraction form
378,822.12/568,325.74 = 126,102.12/x - Step 3: Cross multiply
378,822.12x = 568,325.74 × 126,102.12 - Step 4: Simplify right side
378,822.12x = 71,667,080,664.57 - Step 5: Solve for x
x = 71,667,080,664.57/378,822.12 - Step 6: Final answer
x = 189,183.99
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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.