Finding the Fourth Proportional to 198,005.94, 273,262.68 and 113,121.18
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Solution
The fourth proportional to 198,005.94, 273,262.68 and 113,121.18 is: 156,115.50
Step by Step Solution
- Step 1: Write the proportion equation
198,005.94 : 273,262.68 = 113,121.18 : x - Step 2: Convert to fraction form
198,005.94/273,262.68 = 113,121.18/x - Step 3: Cross multiply
198,005.94x = 273,262.68 × 113,121.18 - Step 4: Simplify right side
198,005.94x = 30,911,796,811.56 - Step 5: Solve for x
x = 30,911,796,811.56/198,005.94 - Step 6: Final answer
x = 156,115.50
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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.