Finding the Fourth Proportional to 122.22, 183.13 and 108.65
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Solution
The fourth proportional to 122.22, 183.13 and 108.65 is: 162.80
Step by Step Solution
- Step 1: Write the proportion equation
122.22 : 183.13 = 108.65 : x - Step 2: Convert to fraction form
122.22/183.13 = 108.65/x - Step 3: Cross multiply
122.22x = 183.13 × 108.65 - Step 4: Simplify right side
122.22x = 19,897.26 - Step 5: Solve for x
x = 19,897.26/122.22 - Step 6: Final answer
x = 162.80
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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.