Finding the Fourth Proportional to 242.88, 335.18 and 159.92
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Solution
The fourth proportional to 242.88, 335.18 and 159.92 is: 220.70
Step by Step Solution
- Step 1: Write the proportion equation
242.88 : 335.18 = 159.92 : x - Step 2: Convert to fraction form
242.88/335.18 = 159.92/x - Step 3: Cross multiply
242.88x = 335.18 × 159.92 - Step 4: Simplify right side
242.88x = 53,603.99 - Step 5: Solve for x
x = 53,603.99/242.88 - Step 6: Final answer
x = 220.70
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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.