Finding the Fourth Proportional to 252.20, 347.99 and 141.68
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Solution
The fourth proportional to 252.20, 347.99 and 141.68 is: 195.49
Step by Step Solution
- Step 1: Write the proportion equation
252.20 : 347.99 = 141.68 : x - Step 2: Convert to fraction form
252.20/347.99 = 141.68/x - Step 3: Cross multiply
252.20x = 347.99 × 141.68 - Step 4: Simplify right side
252.20x = 49,300.77 - Step 5: Solve for x
x = 49,300.77/252.20 - Step 6: Final answer
x = 195.49
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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.