Finding the Fourth Proportional to 203.14, 279.84 and 161.65
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Solution
The fourth proportional to 203.14, 279.84 and 161.65 is: 222.68
Step by Step Solution
- Step 1: Write the proportion equation
203.14 : 279.84 = 161.65 : x - Step 2: Convert to fraction form
203.14/279.84 = 161.65/x - Step 3: Cross multiply
203.14x = 279.84 × 161.65 - Step 4: Simplify right side
203.14x = 45,236.14 - Step 5: Solve for x
x = 45,236.14/203.14 - Step 6: Final answer
x = 222.68
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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.