Finding the Fourth Proportional to 236,145.03, 325,878.12 and 128,715.09
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Solution
The fourth proportional to 236,145.03, 325,878.12 and 128,715.09 is: 177,625.72
Step by Step Solution
- Step 1: Write the proportion equation
236,145.03 : 325,878.12 = 128,715.09 : x - Step 2: Convert to fraction form
236,145.03/325,878.12 = 128,715.09/x - Step 3: Cross multiply
236,145.03x = 325,878.12 × 128,715.09 - Step 4: Simplify right side
236,145.03x = 41,945,431,544.83 - Step 5: Solve for x
x = 41,945,431,544.83/236,145.03 - Step 6: Final answer
x = 177,625.72
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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.