Finding the Fourth Proportional to 203.42, 305.18 and 162.74
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Solution
The fourth proportional to 203.42, 305.18 and 162.74 is: 244.15
Step by Step Solution
- Step 1: Write the proportion equation
203.42 : 305.18 = 162.74 : x - Step 2: Convert to fraction form
203.42/305.18 = 162.74/x - Step 3: Cross multiply
203.42x = 305.18 × 162.74 - Step 4: Simplify right side
203.42x = 49,664.99 - Step 5: Solve for x
x = 49,664.99/203.42 - Step 6: Final answer
x = 244.15
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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.