Finding the Fourth Proportional to 252.79, 378.91 and 122.71
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Solution
The fourth proportional to 252.79, 378.91 and 122.71 is: 183.93
Step by Step Solution
- Step 1: Write the proportion equation
252.79 : 378.91 = 122.71 : x - Step 2: Convert to fraction form
252.79/378.91 = 122.71/x - Step 3: Cross multiply
252.79x = 378.91 × 122.71 - Step 4: Simplify right side
252.79x = 46,496.05 - Step 5: Solve for x
x = 46,496.05/252.79 - Step 6: Final answer
x = 183.93
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.