Finding the Fourth Proportional to 321,971.88, 444,231.12 and 201,235.83
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Solution
The fourth proportional to 321,971.88, 444,231.12 and 201,235.83 is: 277,649.15
Step by Step Solution
- Step 1: Write the proportion equation
321,971.88 : 444,231.12 = 201,235.83 : x - Step 2: Convert to fraction form
321,971.88/444,231.12 = 201,235.83/x - Step 3: Cross multiply
321,971.88x = 444,231.12 × 201,235.83 - Step 4: Simplify right side
321,971.88x = 89,395,218,145.03 - Step 5: Solve for x
x = 89,395,218,145.03/321,971.88 - Step 6: Final answer
x = 277,649.15
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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.