Finding the Fourth Proportional to 305,618.28, 421,797.08 and 183,115.49
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Solution
The fourth proportional to 305,618.28, 421,797.08 and 183,115.49 is: 252,725.66
Step by Step Solution
- Step 1: Write the proportion equation
305,618.28 : 421,797.08 = 183,115.49 : x - Step 2: Convert to fraction form
305,618.28/421,797.08 = 183,115.49/x - Step 3: Cross multiply
305,618.28x = 421,797.08 × 183,115.49 - Step 4: Simplify right side
305,618.28x = 77,237,578,984.77 - Step 5: Solve for x
x = 77,237,578,984.77/305,618.28 - Step 6: Final answer
x = 252,725.66
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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.