Finding the Fourth Proportional to 198,495.62, 273,936.21 and 113,610.74
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Solution
The fourth proportional to 198,495.62, 273,936.21 and 113,610.74 is: 156,789.84
Step by Step Solution
- Step 1: Write the proportion equation
198,495.62 : 273,936.21 = 113,610.74 : x - Step 2: Convert to fraction form
198,495.62/273,936.21 = 113,610.74/x - Step 3: Cross multiply
198,495.62x = 273,936.21 × 113,610.74 - Step 4: Simplify right side
198,495.62x = 31,122,095,530.90 - Step 5: Solve for x
x = 31,122,095,530.90/198,495.62 - Step 6: Final answer
x = 156,789.84
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1.5x scale
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.