Finding the Fourth Proportional to 252.62, 378.69 and 149.93
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Solution
The fourth proportional to 252.62, 378.69 and 149.93 is: 224.75
Step by Step Solution
- Step 1: Write the proportion equation
252.62 : 378.69 = 149.93 : x - Step 2: Convert to fraction form
252.62/378.69 = 149.93/x - Step 3: Cross multiply
252.62x = 378.69 × 149.93 - Step 4: Simplify right side
252.62x = 56,776.99 - Step 5: Solve for x
x = 56,776.99/252.62 - Step 6: Final answer
x = 224.75
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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.