Finding the Fourth Proportional to 206,658.09, 285,114.79 and 135,079.41
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Solution
The fourth proportional to 206,658.09, 285,114.79 and 135,079.41 is: 186,361.63
Step by Step Solution
- Step 1: Write the proportion equation
206,658.09 : 285,114.79 = 135,079.41 : x - Step 2: Convert to fraction form
206,658.09/285,114.79 = 135,079.41/x - Step 3: Cross multiply
206,658.09x = 285,114.79 × 135,079.41 - Step 4: Simplify right side
206,658.09x = 38,513,137,615.47 - Step 5: Solve for x
x = 38,513,137,615.47/206,658.09 - Step 6: Final answer
x = 186,361.63
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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.