Finding the Fourth Proportional to 198,198.08, 273,511.92 and 107,551.76
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Solution
The fourth proportional to 198,198.08, 273,511.92 and 107,551.76 is: 148,420.65
Step by Step Solution
- Step 1: Write the proportion equation
198,198.08 : 273,511.92 = 107,551.76 : x - Step 2: Convert to fraction form
198,198.08/273,511.92 = 107,551.76/x - Step 3: Cross multiply
198,198.08x = 273,511.92 × 107,551.76 - Step 4: Simplify right side
198,198.08x = 29,416,688,376.98 - Step 5: Solve for x
x = 29,416,688,376.98/198,198.08 - Step 6: Final answer
x = 148,420.65
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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.