Finding the Fourth Proportional to 203,942.05, 281,485.05 and 113,329.18
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Solution
The fourth proportional to 203,942.05, 281,485.05 and 113,329.18 is: 156,419.28
Step by Step Solution
- Step 1: Write the proportion equation
203,942.05 : 281,485.05 = 113,329.18 : x - Step 2: Convert to fraction form
203,942.05/281,485.05 = 113,329.18/x - Step 3: Cross multiply
203,942.05x = 281,485.05 × 113,329.18 - Step 4: Simplify right side
203,942.05x = 31,900,468,561.02 - Step 5: Solve for x
x = 31,900,468,561.02/203,942.05 - Step 6: Final answer
x = 156,419.28
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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.