Finding the Fourth Proportional to 209,168.59, 288,546.39 and 136,613.99
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Solution
The fourth proportional to 209,168.59, 288,546.39 and 136,613.99 is: 188,457.90
Step by Step Solution
- Step 1: Write the proportion equation
209,168.59 : 288,546.39 = 136,613.99 : x - Step 2: Convert to fraction form
209,168.59/288,546.39 = 136,613.99/x - Step 3: Cross multiply
209,168.59x = 288,546.39 × 136,613.99 - Step 4: Simplify right side
209,168.59x = 39,419,473,638.00 - Step 5: Solve for x
x = 39,419,473,638.00/209,168.59 - Step 6: Final answer
x = 188,457.90
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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.