Finding the Fourth Proportional to 206,371.84, 284,672.48 and 129,769.70
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Solution
The fourth proportional to 206,371.84, 284,672.48 and 129,769.70 is: 179,006.31
Step by Step Solution
- Step 1: Write the proportion equation
206,371.84 : 284,672.48 = 129,769.70 : x - Step 2: Convert to fraction form
206,371.84/284,672.48 = 129,769.70/x - Step 3: Cross multiply
206,371.84x = 284,672.48 × 129,769.70 - Step 4: Simplify right side
206,371.84x = 36,941,862,327.86 - Step 5: Solve for x
x = 36,941,862,327.86/206,371.84 - Step 6: Final answer
x = 179,006.31
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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.