Finding the Fourth Proportional to 354.22, 531.36 and 110.74
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Solution
The fourth proportional to 354.22, 531.36 and 110.74 is: 166.12
Step by Step Solution
- Step 1: Write the proportion equation
354.22 : 531.36 = 110.74 : x - Step 2: Convert to fraction form
354.22/531.36 = 110.74/x - Step 3: Cross multiply
354.22x = 531.36 × 110.74 - Step 4: Simplify right side
354.22x = 58,843.97 - Step 5: Solve for x
x = 58,843.97/354.22 - Step 6: Final answer
x = 166.12
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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.