Finding the Fourth Proportional to 252.22, 378.33 and 69.63
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Solution
The fourth proportional to 252.22, 378.33 and 69.63 is: 104.45
Step by Step Solution
- Step 1: Write the proportion equation
252.22 : 378.33 = 69.63 : x - Step 2: Convert to fraction form
252.22/378.33 = 69.63/x - Step 3: Cross multiply
252.22x = 378.33 × 69.63 - Step 4: Simplify right side
252.22x = 26,343.12 - Step 5: Solve for x
x = 26,343.12/252.22 - Step 6: Final answer
x = 104.45
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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.