Finding the Fourth Proportional to 213,042.99, 319,676.27 and 80,015.07
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Solution
The fourth proportional to 213,042.99, 319,676.27 and 80,015.07 is: 120,064.59
Step by Step Solution
- Step 1: Write the proportion equation
213,042.99 : 319,676.27 = 80,015.07 : x - Step 2: Convert to fraction form
213,042.99/319,676.27 = 80,015.07/x - Step 3: Cross multiply
213,042.99x = 319,676.27 × 80,015.07 - Step 4: Simplify right side
213,042.99x = 25,578,920,370.18 - Step 5: Solve for x
x = 25,578,920,370.18/213,042.99 - Step 6: Final answer
x = 120,064.59
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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.