Finding the Fourth Proportional to 305,975.88, 422,238.62 and 170,010.09
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Solution
The fourth proportional to 305,975.88, 422,238.62 and 170,010.09 is: 234,609.43
Step by Step Solution
- Step 1: Write the proportion equation
305,975.88 : 422,238.62 = 170,010.09 : x - Step 2: Convert to fraction form
305,975.88/422,238.62 = 170,010.09/x - Step 3: Cross multiply
305,975.88x = 422,238.62 × 170,010.09 - Step 4: Simplify right side
305,975.88x = 71,784,826,212.70 - Step 5: Solve for x
x = 71,784,826,212.70/305,975.88 - Step 6: Final answer
x = 234,609.43
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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.