Finding the Fourth Proportional to 203,482.41, 280,805.18 and 112,839.09
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Solution
The fourth proportional to 203,482.41, 280,805.18 and 112,839.09 is: 155,717.64
Step by Step Solution
- Step 1: Write the proportion equation
203,482.41 : 280,805.18 = 112,839.09 : x - Step 2: Convert to fraction form
203,482.41/280,805.18 = 112,839.09/x - Step 3: Cross multiply
203,482.41x = 280,805.18 × 112,839.09 - Step 4: Simplify right side
203,482.41x = 31,685,800,414.29 - Step 5: Solve for x
x = 31,685,800,414.29/203,482.41 - Step 6: Final answer
x = 155,717.64
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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.