Finding the Fourth Proportional to 236,091.84, 325,795.12 and 128,661.56
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Solution
The fourth proportional to 236,091.84, 325,795.12 and 128,661.56 is: 177,546.62
Step by Step Solution
- Step 1: Write the proportion equation
236,091.84 : 325,795.12 = 128,661.56 : x - Step 2: Convert to fraction form
236,091.84/325,795.12 = 128,661.56/x - Step 3: Cross multiply
236,091.84x = 325,795.12 × 128,661.56 - Step 4: Simplify right side
236,091.84x = 41,917,308,379.59 - Step 5: Solve for x
x = 41,917,308,379.59/236,091.84 - Step 6: Final answer
x = 177,546.62
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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.