Finding the Fourth Proportional to 236,039.14, 325,724.87 and 128,609.98
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Solution
The fourth proportional to 236,039.14, 325,724.87 and 128,609.98 is: 177,476.79
Step by Step Solution
- Step 1: Write the proportion equation
236,039.14 : 325,724.87 = 128,609.98 : x - Step 2: Convert to fraction form
236,039.14/325,724.87 = 128,609.98/x - Step 3: Cross multiply
236,039.14x = 325,724.87 × 128,609.98 - Step 4: Simplify right side
236,039.14x = 41,891,468,161.70 - Step 5: Solve for x
x = 41,891,468,161.70/236,039.14 - Step 6: Final answer
x = 177,476.79
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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.