Finding the Fourth Proportional to 122.41, 183.51 and 52.99
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Solution
The fourth proportional to 122.41, 183.51 and 52.99 is: 79.44
Step by Step Solution
- Step 1: Write the proportion equation
122.41 : 183.51 = 52.99 : x - Step 2: Convert to fraction form
122.41/183.51 = 52.99/x - Step 3: Cross multiply
122.41x = 183.51 × 52.99 - Step 4: Simplify right side
122.41x = 9,724.19 - Step 5: Solve for x
x = 9,724.19/122.41 - Step 6: Final answer
x = 79.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.