Finding the Fourth Proportional to 252.91, 378.91 and 192.07
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Solution
The fourth proportional to 252.91, 378.91 and 192.07 is: 287.76
Step by Step Solution
- Step 1: Write the proportion equation
252.91 : 378.91 = 192.07 : x - Step 2: Convert to fraction form
252.91/378.91 = 192.07/x - Step 3: Cross multiply
252.91x = 378.91 × 192.07 - Step 4: Simplify right side
252.91x = 72,777.24 - Step 5: Solve for x
x = 72,777.24/252.91 - Step 6: Final answer
x = 287.76
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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.