Finding the Fourth Proportional to 206,942.44, 285,683.91 and 135,431.70
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Solution
The fourth proportional to 206,942.44, 285,683.91 and 135,431.70 is: 186,963.38
Step by Step Solution
- Step 1: Write the proportion equation
206,942.44 : 285,683.91 = 135,431.70 : x - Step 2: Convert to fraction form
206,942.44/285,683.91 = 135,431.70/x - Step 3: Cross multiply
206,942.44x = 285,683.91 × 135,431.70 - Step 4: Simplify right side
206,942.44x = 38,690,657,593.95 - Step 5: Solve for x
x = 38,690,657,593.95/206,942.44 - Step 6: Final answer
x = 186,963.38
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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.