Finding the Fourth Proportional to 203.18, 305.96 and 170.96
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Solution
The fourth proportional to 203.18, 305.96 and 170.96 is: 257.44
Step by Step Solution
- Step 1: Write the proportion equation
203.18 : 305.96 = 170.96 : x - Step 2: Convert to fraction form
203.18/305.96 = 170.96/x - Step 3: Cross multiply
203.18x = 305.96 × 170.96 - Step 4: Simplify right side
203.18x = 52,304.54 - Step 5: Solve for x
x = 52,304.54/203.18 - Step 6: Final answer
x = 257.44
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.