Finding the Fourth Proportional to 343.23, 517.17 and 283.70
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Solution
The fourth proportional to 343.23, 517.17 and 283.70 is: 427.46
Step by Step Solution
- Step 1: Write the proportion equation
343.23 : 517.17 = 283.70 : x - Step 2: Convert to fraction form
343.23/517.17 = 283.70/x - Step 3: Cross multiply
343.23x = 517.17 × 283.70 - Step 4: Simplify right side
343.23x = 146,717.12 - Step 5: Solve for x
x = 146,717.12/343.23 - Step 6: Final answer
x = 427.46
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.