Finding the Fourth Proportional to 206,640.84, 285,091.02 and 135,062.19
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Solution
The fourth proportional to 206,640.84, 285,091.02 and 135,062.19 is: 186,337.89
Step by Step Solution
- Step 1: Write the proportion equation
206,640.84 : 285,091.02 = 135,062.19 : x - Step 2: Convert to fraction form
206,640.84/285,091.02 = 135,062.19/x - Step 3: Cross multiply
206,640.84x = 285,091.02 × 135,062.19 - Step 4: Simplify right side
206,640.84x = 38,505,017,510.53 - Step 5: Solve for x
x = 38,505,017,510.53/206,640.84 - Step 6: Final answer
x = 186,337.89
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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.