Finding the Fourth Proportional to 252.08, 378.12 and 130.26
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Solution
The fourth proportional to 252.08, 378.12 and 130.26 is: 195.39
Step by Step Solution
- Step 1: Write the proportion equation
252.08 : 378.12 = 130.26 : x - Step 2: Convert to fraction form
252.08/378.12 = 130.26/x - Step 3: Cross multiply
252.08x = 378.12 × 130.26 - Step 4: Simplify right side
252.08x = 49,253.91 - Step 5: Solve for x
x = 49,253.91/252.08 - Step 6: Final answer
x = 195.39
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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.