Finding the Fourth Proportional to 203.69, 305.23 and 122.44
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Solution
The fourth proportional to 203.69, 305.23 and 122.44 is: 183.48
Step by Step Solution
- Step 1: Write the proportion equation
203.69 : 305.23 = 122.44 : x - Step 2: Convert to fraction form
203.69/305.23 = 122.44/x - Step 3: Cross multiply
203.69x = 305.23 × 122.44 - Step 4: Simplify right side
203.69x = 37,372.36 - Step 5: Solve for x
x = 37,372.36/203.69 - Step 6: Final answer
x = 183.48
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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.