Finding the Fourth Proportional to 206,512.08, 284,969.88 and 115,855.80
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Solution
The fourth proportional to 206,512.08, 284,969.88 and 115,855.80 is: 159,871.58
Step by Step Solution
- Step 1: Write the proportion equation
206,512.08 : 284,969.88 = 115,855.80 : x - Step 2: Convert to fraction form
206,512.08/284,969.88 = 115,855.80/x - Step 3: Cross multiply
206,512.08x = 284,969.88 × 115,855.80 - Step 4: Simplify right side
206,512.08x = 33,015,413,423.30 - Step 5: Solve for x
x = 33,015,413,423.30/206,512.08 - Step 6: Final answer
x = 159,871.58
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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.