Finding the Fourth Proportional to 203,642.10, 281,026.26 and 112,997.70
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Solution
The fourth proportional to 203,642.10, 281,026.26 and 112,997.70 is: 155,936.92
Step by Step Solution
- Step 1: Write the proportion equation
203,642.10 : 281,026.26 = 112,997.70 : x - Step 2: Convert to fraction form
203,642.10/281,026.26 = 112,997.70/x - Step 3: Cross multiply
203,642.10x = 281,026.26 × 112,997.70 - Step 4: Simplify right side
203,642.10x = 31,755,321,019.60 - Step 5: Solve for x
x = 31,755,321,019.60/203,642.10 - Step 6: Final answer
x = 155,936.92
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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.