Finding the Fourth Proportional to 231,147.75, 318,983.90 and 125,163.75
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Solution
The fourth proportional to 231,147.75, 318,983.90 and 125,163.75 is: 172,725.98
Step by Step Solution
- Step 1: Write the proportion equation
231,147.75 : 318,983.90 = 125,163.75 : x - Step 2: Convert to fraction form
231,147.75/318,983.90 = 125,163.75/x - Step 3: Cross multiply
231,147.75x = 318,983.90 × 125,163.75 - Step 4: Simplify right side
231,147.75x = 39,925,220,487.81 - Step 5: Solve for x
x = 39,925,220,487.81/231,147.75 - Step 6: Final answer
x = 172,725.98
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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.