Finding the Fourth Proportional to 321,887.76, 444,198.44 and 178,646.80
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Solution
The fourth proportional to 321,887.76, 444,198.44 and 178,646.80 is: 246,528.88
Step by Step Solution
- Step 1: Write the proportion equation
321,887.76 : 444,198.44 = 178,646.80 : x - Step 2: Convert to fraction form
321,887.76/444,198.44 = 178,646.80/x - Step 3: Cross multiply
321,887.76x = 444,198.44 × 178,646.80 - Step 4: Simplify right side
321,887.76x = 79,354,629,870.99 - Step 5: Solve for x
x = 79,354,629,870.99/321,887.76 - Step 6: Final answer
x = 246,528.88
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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.