Finding the Fourth Proportional to 303,961.70, 419,454.09 and 167,988.62
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Solution
The fourth proportional to 303,961.70, 419,454.09 and 167,988.62 is: 231,817.08
Step by Step Solution
- Step 1: Write the proportion equation
303,961.70 : 419,454.09 = 167,988.62 : x - Step 2: Convert to fraction form
303,961.70/419,454.09 = 167,988.62/x - Step 3: Cross multiply
303,961.70x = 419,454.09 × 167,988.62 - Step 4: Simplify right side
303,961.70x = 70,463,511,635.19 - Step 5: Solve for x
x = 70,463,511,635.19/303,961.70 - Step 6: Final answer
x = 231,817.08
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1.5x scale
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.