Finding the Fourth Proportional to 378,821.12, 568,324.24 and 126,101.12
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Solution
The fourth proportional to 378,821.12, 568,324.24 and 126,101.12 is: 189,182.49
Step by Step Solution
- Step 1: Write the proportion equation
378,821.12 : 568,324.24 = 126,101.12 : x - Step 2: Convert to fraction form
378,821.12/568,324.24 = 126,101.12/x - Step 3: Cross multiply
378,821.12x = 568,324.24 × 126,101.12 - Step 4: Simplify right side
378,821.12x = 71,666,323,187.15 - Step 5: Solve for x
x = 71,666,323,187.15/378,821.12 - Step 6: Final answer
x = 189,182.49
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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.