Finding the Fourth Proportional to 122.50, 183.66 and 122.14
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Solution
The fourth proportional to 122.50, 183.66 and 122.14 is: 183.12
Step by Step Solution
- Step 1: Write the proportion equation
122.50 : 183.66 = 122.14 : x - Step 2: Convert to fraction form
122.50/183.66 = 122.14/x - Step 3: Cross multiply
122.50x = 183.66 × 122.14 - Step 4: Simplify right side
122.50x = 22,432.23 - Step 5: Solve for x
x = 22,432.23/122.50 - Step 6: Final answer
x = 183.12
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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.