Finding the Fourth Proportional to 203,915.19, 305,991.28 and 83,984.21
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Solution
The fourth proportional to 203,915.19, 305,991.28 and 83,984.21 is: 126,025.12
Step by Step Solution
- Step 1: Write the proportion equation
203,915.19 : 305,991.28 = 83,984.21 : x - Step 2: Convert to fraction form
203,915.19/305,991.28 = 83,984.21/x - Step 3: Cross multiply
203,915.19x = 305,991.28 × 83,984.21 - Step 4: Simplify right side
203,915.19x = 25,698,437,361.38 - Step 5: Solve for x
x = 25,698,437,361.38/203,915.19 - Step 6: Final answer
x = 126,025.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.