Finding the Fourth Proportional to 206,372.09, 284,672.83 and 129,769.95
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Solution
The fourth proportional to 206,372.09, 284,672.83 and 129,769.95 is: 179,006.66
Step by Step Solution
- Step 1: Write the proportion equation
206,372.09 : 284,672.83 = 129,769.95 : x - Step 2: Convert to fraction form
206,372.09/284,672.83 = 129,769.95/x - Step 3: Cross multiply
206,372.09x = 284,672.83 × 129,769.95 - Step 4: Simplify right side
206,372.09x = 36,941,978,266.61 - Step 5: Solve for x
x = 36,941,978,266.61/206,372.09 - Step 6: Final answer
x = 179,006.66
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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.