Finding the Fourth Proportional to 344.14, 516.26 and 138.70
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Solution
The fourth proportional to 344.14, 516.26 and 138.70 is: 208.07
Step by Step Solution
- Step 1: Write the proportion equation
344.14 : 516.26 = 138.70 : x - Step 2: Convert to fraction form
344.14/516.26 = 138.70/x - Step 3: Cross multiply
344.14x = 516.26 × 138.70 - Step 4: Simplify right side
344.14x = 71,605.26 - Step 5: Solve for x
x = 71,605.26/344.14 - Step 6: Final answer
x = 208.07
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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.