Finding the Fourth Proportional to 343.79, 516.99 and 274.54
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Solution
The fourth proportional to 343.79, 516.99 and 274.54 is: 412.85
Step by Step Solution
- Step 1: Write the proportion equation
343.79 : 516.99 = 274.54 : x - Step 2: Convert to fraction form
343.79/516.99 = 274.54/x - Step 3: Cross multiply
343.79x = 516.99 × 274.54 - Step 4: Simplify right side
343.79x = 141,934.43 - Step 5: Solve for x
x = 141,934.43/343.79 - Step 6: Final answer
x = 412.85
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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.