Finding the Fourth Proportional to 197,998.80, 296,998.20 and 121,891.20
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Solution
The fourth proportional to 197,998.80, 296,998.20 and 121,891.20 is: 182,836.80
Step by Step Solution
- Step 1: Write the proportion equation
197,998.80 : 296,998.20 = 121,891.20 : x - Step 2: Convert to fraction form
197,998.80/296,998.20 = 121,891.20/x - Step 3: Cross multiply
197,998.80x = 296,998.20 × 121,891.20 - Step 4: Simplify right side
197,998.80x = 36,201,466,995.84 - Step 5: Solve for x
x = 36,201,466,995.84/197,998.80 - Step 6: Final answer
x = 182,836.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.