Finding the Fourth Proportional to 252.18, 348.09 and 153.99
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Solution
The fourth proportional to 252.18, 348.09 and 153.99 is: 212.56
Step by Step Solution
- Step 1: Write the proportion equation
252.18 : 348.09 = 153.99 : x - Step 2: Convert to fraction form
252.18/348.09 = 153.99/x - Step 3: Cross multiply
252.18x = 348.09 × 153.99 - Step 4: Simplify right side
252.18x = 53,602.38 - Step 5: Solve for x
x = 53,602.38/252.18 - Step 6: Final answer
x = 212.56
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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.