Finding the Fourth Proportional to 203,915.58, 281,408.61 and 113,267.19
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Solution
The fourth proportional to 203,915.58, 281,408.61 and 113,267.19 is: 156,311.56
Step by Step Solution
- Step 1: Write the proportion equation
203,915.58 : 281,408.61 = 113,267.19 : x - Step 2: Convert to fraction form
203,915.58/281,408.61 = 113,267.19/x - Step 3: Cross multiply
203,915.58x = 281,408.61 × 113,267.19 - Step 4: Simplify right side
203,915.58x = 31,874,362,496.51 - Step 5: Solve for x
x = 31,874,362,496.51/203,915.58 - Step 6: Final answer
x = 156,311.56
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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.