Finding the Fourth Proportional to 235,342.26, 353,163.51 and 85,568.19
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Solution
The fourth proportional to 235,342.26, 353,163.51 and 85,568.19 is: 128,406.87
Step by Step Solution
- Step 1: Write the proportion equation
235,342.26 : 353,163.51 = 85,568.19 : x - Step 2: Convert to fraction form
235,342.26/353,163.51 = 85,568.19/x - Step 3: Cross multiply
235,342.26x = 353,163.51 × 85,568.19 - Step 4: Simplify right side
235,342.26x = 30,219,562,324.75 - Step 5: Solve for x
x = 30,219,562,324.75/235,342.26 - Step 6: Final answer
x = 128,406.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.