Finding the Fourth Proportional to 198,972.68, 274,580.60 and 108,328.41
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Solution
The fourth proportional to 198,972.68, 274,580.60 and 108,328.41 is: 149,492.28
Step by Step Solution
- Step 1: Write the proportion equation
198,972.68 : 274,580.60 = 108,328.41 : x - Step 2: Convert to fraction form
198,972.68/274,580.60 = 108,328.41/x - Step 3: Cross multiply
198,972.68x = 274,580.60 × 108,328.41 - Step 4: Simplify right side
198,972.68x = 29,744,879,273.20 - Step 5: Solve for x
x = 29,744,879,273.20/198,972.68 - Step 6: Final answer
x = 149,492.28
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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.