Finding the Fourth Proportional to 344.69, 517.05 and 84.70
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Solution
The fourth proportional to 344.69, 517.05 and 84.70 is: 127.04
Step by Step Solution
- Step 1: Write the proportion equation
344.69 : 517.05 = 84.70 : x - Step 2: Convert to fraction form
344.69/517.05 = 84.70/x - Step 3: Cross multiply
344.69x = 517.05 × 84.70 - Step 4: Simplify right side
344.69x = 43,791.23 - Step 5: Solve for x
x = 43,791.23/344.69 - Step 6: Final answer
x = 127.04
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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.