Finding the Fourth Proportional to 303,640.85, 455,466.14 and 135,121.97
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Solution
The fourth proportional to 303,640.85, 455,466.14 and 135,121.97 is: 202,685.12
Step by Step Solution
- Step 1: Write the proportion equation
303,640.85 : 455,466.14 = 135,121.97 : x - Step 2: Convert to fraction form
303,640.85/455,466.14 = 135,121.97/x - Step 3: Cross multiply
303,640.85x = 455,466.14 × 135,121.97 - Step 4: Simplify right side
303,640.85x = 61,543,482,105.10 - Step 5: Solve for x
x = 61,543,482,105.10/303,640.85 - Step 6: Final answer
x = 202,685.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.