Finding the Fourth Proportional to 252.99, 349.07 and 142.43
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Solution
The fourth proportional to 252.99, 349.07 and 142.43 is: 196.51
Step by Step Solution
- Step 1: Write the proportion equation
252.99 : 349.07 = 142.43 : x - Step 2: Convert to fraction form
252.99/349.07 = 142.43/x - Step 3: Cross multiply
252.99x = 349.07 × 142.43 - Step 4: Simplify right side
252.99x = 49,715.58 - Step 5: Solve for x
x = 49,715.58/252.99 - Step 6: Final answer
x = 196.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.