Finding the Fourth Proportional to 305,896.93, 422,019.99 and 225,515.57
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Solution
The fourth proportional to 305,896.93, 422,019.99 and 225,515.57 is: 311,124.66
Step by Step Solution
- Step 1: Write the proportion equation
305,896.93 : 422,019.99 = 225,515.57 : x - Step 2: Convert to fraction form
305,896.93/422,019.99 = 225,515.57/x - Step 3: Cross multiply
305,896.93x = 422,019.99 × 225,515.57 - Step 4: Simplify right side
305,896.93x = 95,172,076,486.14 - Step 5: Solve for x
x = 95,172,076,486.14/305,896.93 - Step 6: Final answer
x = 311,124.66
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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.