Finding the Fourth Proportional to 327,891.40, 491,837.10 and 194,921.80
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Solution
The fourth proportional to 327,891.40, 491,837.10 and 194,921.80 is: 292,382.70
Step by Step Solution
- Step 1: Write the proportion equation
327,891.40 : 491,837.10 = 194,921.80 : x - Step 2: Convert to fraction form
327,891.40/491,837.10 = 194,921.80/x - Step 3: Cross multiply
327,891.40x = 491,837.10 × 194,921.80 - Step 4: Simplify right side
327,891.40x = 95,869,772,838.78 - Step 5: Solve for x
x = 95,869,772,838.78/327,891.40 - Step 6: Final answer
x = 292,382.70
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1.5x scale
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.