Finding the Fourth Proportional to 256,478.67, 353,958.87 and 141,754.84
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Solution
The fourth proportional to 256,478.67, 353,958.87 and 141,754.84 is: 195,631.80
Step by Step Solution
- Step 1: Write the proportion equation
256,478.67 : 353,958.87 = 141,754.84 : x - Step 2: Convert to fraction form
256,478.67/353,958.87 = 141,754.84/x - Step 3: Cross multiply
256,478.67x = 353,958.87 × 141,754.84 - Step 4: Simplify right side
256,478.67x = 50,175,382,983.43 - Step 5: Solve for x
x = 50,175,382,983.43/256,478.67 - Step 6: Final answer
x = 195,631.80
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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.