Finding the Fourth Proportional to 252,747.12, 378,993.88 and 84,208.16
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Solution
The fourth proportional to 252,747.12, 378,993.88 and 84,208.16 is: 126,269.99
Step by Step Solution
- Step 1: Write the proportion equation
252,747.12 : 378,993.88 = 84,208.16 : x - Step 2: Convert to fraction form
252,747.12/378,993.88 = 84,208.16/x - Step 3: Cross multiply
252,747.12x = 378,993.88 × 84,208.16 - Step 4: Simplify right side
252,747.12x = 31,914,377,286.06 - Step 5: Solve for x
x = 31,914,377,286.06/252,747.12 - Step 6: Final answer
x = 126,269.99
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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.