Finding the Fourth Proportional to 252.95, 349.08 and 142.44
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Solution
The fourth proportional to 252.95, 349.08 and 142.44 is: 196.57
Step by Step Solution
- Step 1: Write the proportion equation
252.95 : 349.08 = 142.44 : x - Step 2: Convert to fraction form
252.95/349.08 = 142.44/x - Step 3: Cross multiply
252.95x = 349.08 × 142.44 - Step 4: Simplify right side
252.95x = 49,721.21 - Step 5: Solve for x
x = 49,721.21/252.95 - Step 6: Final answer
x = 196.57
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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.