Finding the Fourth Proportional to 204,183.58, 281,658.43 and 122,490.09
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Solution
The fourth proportional to 204,183.58, 281,658.43 and 122,490.09 is: 168,967.40
Step by Step Solution
- Step 1: Write the proportion equation
204,183.58 : 281,658.43 = 122,490.09 : x - Step 2: Convert to fraction form
204,183.58/281,658.43 = 122,490.09/x - Step 3: Cross multiply
204,183.58x = 281,658.43 × 122,490.09 - Step 4: Simplify right side
204,183.58x = 34,500,367,649.29 - Step 5: Solve for x
x = 34,500,367,649.29/204,183.58 - Step 6: Final answer
x = 168,967.40
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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.