Finding the Fourth Proportional to 238.09, 328.08 and 229.99
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Solution
The fourth proportional to 238.09, 328.08 and 229.99 is: 316.92
Step by Step Solution
- Step 1: Write the proportion equation
238.09 : 328.08 = 229.99 : x - Step 2: Convert to fraction form
238.09/328.08 = 229.99/x - Step 3: Cross multiply
238.09x = 328.08 × 229.99 - Step 4: Simplify right side
238.09x = 75,455.12 - Step 5: Solve for x
x = 75,455.12/238.09 - Step 6: Final answer
x = 316.92
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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.