Finding the Fourth Proportional to 285,517.80, 394,207.02 and 255,205.98
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Solution
The fourth proportional to 285,517.80, 394,207.02 and 255,205.98 is: 352,356.28
Step by Step Solution
- Step 1: Write the proportion equation
285,517.80 : 394,207.02 = 255,205.98 : x - Step 2: Convert to fraction form
285,517.80/394,207.02 = 255,205.98/x - Step 3: Cross multiply
285,517.80x = 394,207.02 × 255,205.98 - Step 4: Simplify right side
285,517.80x = 100,603,988,861.98 - Step 5: Solve for x
x = 100,603,988,861.98/285,517.80 - Step 6: Final answer
x = 352,356.28
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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.