Finding the Fourth Proportional to 256,843.28, 354,543.08 and 229,939.09
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Solution
The fourth proportional to 256,843.28, 354,543.08 and 229,939.09 is: 317,404.88
Step by Step Solution
- Step 1: Write the proportion equation
256,843.28 : 354,543.08 = 229,939.09 : x - Step 2: Convert to fraction form
256,843.28/354,543.08 = 229,939.09/x - Step 3: Cross multiply
256,843.28x = 354,543.08 × 229,939.09 - Step 4: Simplify right side
256,843.28x = 81,523,311,144.94 - Step 5: Solve for x
x = 81,523,311,144.94/256,843.28 - Step 6: Final answer
x = 317,404.88
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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.