Finding the Fourth Proportional to 252.68, 348.68 and 142.14
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Solution
The fourth proportional to 252.68, 348.68 and 142.14 is: 196.15
Step by Step Solution
- Step 1: Write the proportion equation
252.68 : 348.68 = 142.14 : x - Step 2: Convert to fraction form
252.68/348.68 = 142.14/x - Step 3: Cross multiply
252.68x = 348.68 × 142.14 - Step 4: Simplify right side
252.68x = 49,562.24 - Step 5: Solve for x
x = 49,562.24/252.68 - Step 6: Final answer
x = 196.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.