Finding the Fourth Proportional to 206,376.91, 284,679.16 and 129,774.49
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Solution
The fourth proportional to 206,376.91, 284,679.16 and 129,774.49 is: 179,012.72
Step by Step Solution
- Step 1: Write the proportion equation
206,376.91 : 284,679.16 = 129,774.49 : x - Step 2: Convert to fraction form
206,376.91/284,679.16 = 129,774.49/x - Step 3: Cross multiply
206,376.91x = 284,679.16 × 129,774.49 - Step 4: Simplify right side
206,376.91x = 36,944,091,766.49 - Step 5: Solve for x
x = 36,944,091,766.49/206,376.91 - Step 6: Final answer
x = 179,012.72
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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.