Finding the Fourth Proportional to 122.12, 183.28 and 117.26
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Solution
The fourth proportional to 122.12, 183.28 and 117.26 is: 175.99
Step by Step Solution
- Step 1: Write the proportion equation
122.12 : 183.28 = 117.26 : x - Step 2: Convert to fraction form
122.12/183.28 = 117.26/x - Step 3: Cross multiply
122.12x = 183.28 × 117.26 - Step 4: Simplify right side
122.12x = 21,491.41 - Step 5: Solve for x
x = 21,491.41/122.12 - Step 6: Final answer
x = 175.99
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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.