Finding the Fourth Proportional to 198,147.48, 297,243.77 and 71,847.21
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Solution
The fourth proportional to 198,147.48, 297,243.77 and 71,847.21 is: 107,778.99
Step by Step Solution
- Step 1: Write the proportion equation
198,147.48 : 297,243.77 = 71,847.21 : x - Step 2: Convert to fraction form
198,147.48/297,243.77 = 71,847.21/x - Step 3: Cross multiply
198,147.48x = 297,243.77 × 71,847.21 - Step 4: Simplify right side
198,147.48x = 21,356,135,564.38 - Step 5: Solve for x
x = 21,356,135,564.38/198,147.48 - Step 6: Final answer
x = 107,778.99
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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.