Finding the Fourth Proportional to 198,731.88, 274,241.70 and 113,856.84
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Solution
The fourth proportional to 198,731.88, 274,241.70 and 113,856.84 is: 157,117.69
Step by Step Solution
- Step 1: Write the proportion equation
198,731.88 : 274,241.70 = 113,856.84 : x - Step 2: Convert to fraction form
198,731.88/274,241.70 = 113,856.84/x - Step 3: Cross multiply
198,731.88x = 274,241.70 × 113,856.84 - Step 4: Simplify right side
198,731.88x = 31,224,293,358.23 - Step 5: Solve for x
x = 31,224,293,358.23/198,731.88 - Step 6: Final answer
x = 157,117.69
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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.