Finding the Fourth Proportional to 206,970.75, 285,619.91 and 117,546.75
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Solution
The fourth proportional to 206,970.75, 285,619.91 and 117,546.75 is: 162,214.67
Step by Step Solution
- Step 1: Write the proportion equation
206,970.75 : 285,619.91 = 117,546.75 : x - Step 2: Convert to fraction form
206,970.75/285,619.91 = 117,546.75/x - Step 3: Cross multiply
206,970.75x = 285,619.91 × 117,546.75 - Step 4: Simplify right side
206,970.75x = 33,573,691,568.06 - Step 5: Solve for x
x = 33,573,691,568.06/206,970.75 - Step 6: Final answer
x = 162,214.67
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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.