Finding the Fourth Proportional to 222.06, 306.59 and 152.09
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Solution
The fourth proportional to 222.06, 306.59 and 152.09 is: 209.99
Step by Step Solution
- Step 1: Write the proportion equation
222.06 : 306.59 = 152.09 : x - Step 2: Convert to fraction form
222.06/306.59 = 152.09/x - Step 3: Cross multiply
222.06x = 306.59 × 152.09 - Step 4: Simplify right side
222.06x = 46,629.28 - Step 5: Solve for x
x = 46,629.28/222.06 - Step 6: Final answer
x = 209.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.