Finding the Fourth Proportional to 220,369.21, 304,174.49 and 143,900.19
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Solution
The fourth proportional to 220,369.21, 304,174.49 and 143,900.19 is: 198,624.69
Step by Step Solution
- Step 1: Write the proportion equation
220,369.21 : 304,174.49 = 143,900.19 : x - Step 2: Convert to fraction form
220,369.21/304,174.49 = 143,900.19/x - Step 3: Cross multiply
220,369.21x = 304,174.49 × 143,900.19 - Step 4: Simplify right side
220,369.21x = 43,770,766,904.15 - Step 5: Solve for x
x = 43,770,766,904.15/220,369.21 - Step 6: Final answer
x = 198,624.69
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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.