Finding the Fourth Proportional to 223.20, 334.88 and 115.08
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Solution
The fourth proportional to 223.20, 334.88 and 115.08 is: 172.66
Step by Step Solution
- Step 1: Write the proportion equation
223.20 : 334.88 = 115.08 : x - Step 2: Convert to fraction form
223.20/334.88 = 115.08/x - Step 3: Cross multiply
223.20x = 334.88 × 115.08 - Step 4: Simplify right side
223.20x = 38,537.99 - Step 5: Solve for x
x = 38,537.99/223.20 - Step 6: Final answer
x = 172.66
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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.