Finding the Fourth Proportional to 407,451.10, 611,163.21 and 167,556.70
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Solution
The fourth proportional to 407,451.10, 611,163.21 and 167,556.70 is: 251,329.52
Step by Step Solution
- Step 1: Write the proportion equation
407,451.10 : 611,163.21 = 167,556.70 : x - Step 2: Convert to fraction form
407,451.10/611,163.21 = 167,556.70/x - Step 3: Cross multiply
407,451.10x = 611,163.21 × 167,556.70 - Step 4: Simplify right side
407,451.10x = 102,404,490,629.01 - Step 5: Solve for x
x = 102,404,490,629.01/407,451.10 - Step 6: Final answer
x = 251,329.52
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1.5x scale
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.