Finding the Fourth Proportional to 318,872.27, 440,027.11 and 198,010.96
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Solution
The fourth proportional to 318,872.27, 440,027.11 and 198,010.96 is: 273,244.79
Step by Step Solution
- Step 1: Write the proportion equation
318,872.27 : 440,027.11 = 198,010.96 : x - Step 2: Convert to fraction form
318,872.27/440,027.11 = 198,010.96/x - Step 3: Cross multiply
318,872.27x = 440,027.11 × 198,010.96 - Step 4: Simplify right side
318,872.27x = 87,130,187,286.94 - Step 5: Solve for x
x = 87,130,187,286.94/318,872.27 - Step 6: Final answer
x = 273,244.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.