Finding the Fourth Proportional to 198,379.68, 273,763.08 and 107,734.92
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Solution
The fourth proportional to 198,379.68, 273,763.08 and 107,734.92 is: 148,673.71
Step by Step Solution
- Step 1: Write the proportion equation
198,379.68 : 273,763.08 = 107,734.92 : x - Step 2: Convert to fraction form
198,379.68/273,763.08 = 107,734.92/x - Step 3: Cross multiply
198,379.68x = 273,763.08 × 107,734.92 - Step 4: Simplify right side
198,379.68x = 29,493,843,522.75 - Step 5: Solve for x
x = 29,493,843,522.75/198,379.68 - Step 6: Final answer
x = 148,673.71
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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.