Finding the Fourth Proportional to 198,609.18, 297,745.82 and 86,204.92
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Solution
The fourth proportional to 198,609.18, 297,745.82 and 86,204.92 is: 129,234.48
Step by Step Solution
- Step 1: Write the proportion equation
198,609.18 : 297,745.82 = 86,204.92 : x - Step 2: Convert to fraction form
198,609.18/297,745.82 = 86,204.92/x - Step 3: Cross multiply
198,609.18x = 297,745.82 × 86,204.92 - Step 4: Simplify right side
198,609.18x = 25,667,154,593.43 - Step 5: Solve for x
x = 25,667,154,593.43/198,609.18 - Step 6: Final answer
x = 129,234.48
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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.