Finding the Fourth Proportional to 198,419.79, 273,821.52 and 116,766.09
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Solution
The fourth proportional to 198,419.79, 273,821.52 and 116,766.09 is: 161,138.50
Step by Step Solution
- Step 1: Write the proportion equation
198,419.79 : 273,821.52 = 116,766.09 : x - Step 2: Convert to fraction form
198,419.79/273,821.52 = 116,766.09/x - Step 3: Cross multiply
198,419.79x = 273,821.52 × 116,766.09 - Step 4: Simplify right side
198,419.79x = 31,973,068,248.26 - Step 5: Solve for x
x = 31,973,068,248.26/198,419.79 - Step 6: Final answer
x = 161,138.50
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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.