Finding the Fourth Proportional to 227,107.80, 340,661.70 and 121,872.60
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Solution
The fourth proportional to 227,107.80, 340,661.70 and 121,872.60 is: 182,808.90
Step by Step Solution
- Step 1: Write the proportion equation
227,107.80 : 340,661.70 = 121,872.60 : x - Step 2: Convert to fraction form
227,107.80/340,661.70 = 121,872.60/x - Step 3: Cross multiply
227,107.80x = 340,661.70 × 121,872.60 - Step 4: Simplify right side
227,107.80x = 41,517,327,099.42 - Step 5: Solve for x
x = 41,517,327,099.42/227,107.80 - Step 6: Final answer
x = 182,808.90
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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.