Finding the Fourth Proportional to 198,790.35, 274,324.43 and 108,143.99
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Solution
The fourth proportional to 198,790.35, 274,324.43 and 108,143.99 is: 149,235.29
Step by Step Solution
- Step 1: Write the proportion equation
198,790.35 : 274,324.43 = 108,143.99 : x - Step 2: Convert to fraction form
198,790.35/274,324.43 = 108,143.99/x - Step 3: Cross multiply
198,790.35x = 274,324.43 × 108,143.99 - Step 4: Simplify right side
198,790.35x = 29,666,536,502.33 - Step 5: Solve for x
x = 29,666,536,502.33/198,790.35 - Step 6: Final answer
x = 149,235.29
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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.