Finding the Fourth Proportional to 236,163.93, 325,903.56 and 128,731.60
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Solution
The fourth proportional to 236,163.93, 325,903.56 and 128,731.60 is: 177,648.16
Step by Step Solution
- Step 1: Write the proportion equation
236,163.93 : 325,903.56 = 128,731.60 : x - Step 2: Convert to fraction form
236,163.93/325,903.56 = 128,731.60/x - Step 3: Cross multiply
236,163.93x = 325,903.56 × 128,731.60 - Step 4: Simplify right side
236,163.93x = 41,954,087,207.24 - Step 5: Solve for x
x = 41,954,087,207.24/236,163.93 - Step 6: Final answer
x = 177,648.16
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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.