Finding the Fourth Proportional to 206,201.20, 309,006.60 and 117,266.80
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Solution
The fourth proportional to 206,201.20, 309,006.60 and 117,266.80 is: 175,732.32
Step by Step Solution
- Step 1: Write the proportion equation
206,201.20 : 309,006.60 = 117,266.80 : x - Step 2: Convert to fraction form
206,201.20/309,006.60 = 117,266.80/x - Step 3: Cross multiply
206,201.20x = 309,006.60 × 117,266.80 - Step 4: Simplify right side
206,201.20x = 36,236,215,160.88 - Step 5: Solve for x
x = 36,236,215,160.88/206,201.20 - Step 6: Final answer
x = 175,732.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.