Finding the Fourth Proportional to 344.23, 516.23 and 138.75
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Solution
The fourth proportional to 344.23, 516.23 and 138.75 is: 208.08
Step by Step Solution
- Step 1: Write the proportion equation
344.23 : 516.23 = 138.75 : x - Step 2: Convert to fraction form
344.23/516.23 = 138.75/x - Step 3: Cross multiply
344.23x = 516.23 × 138.75 - Step 4: Simplify right side
344.23x = 71,626.91 - Step 5: Solve for x
x = 71,626.91/344.23 - Step 6: Final answer
x = 208.08
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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.