Finding the Fourth Proportional to 252.11, 347.93 and 153.92
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Solution
The fourth proportional to 252.11, 347.93 and 153.92 is: 212.42
Step by Step Solution
- Step 1: Write the proportion equation
252.11 : 347.93 = 153.92 : x - Step 2: Convert to fraction form
252.11/347.93 = 153.92/x - Step 3: Cross multiply
252.11x = 347.93 × 153.92 - Step 4: Simplify right side
252.11x = 53,554.06 - Step 5: Solve for x
x = 53,554.06/252.11 - Step 6: Final answer
x = 212.42
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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.