Finding the Fourth Proportional to 344.70, 515.70 and 236.70
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Solution
The fourth proportional to 344.70, 515.70 and 236.70 is: 354.12
Step by Step Solution
- Step 1: Write the proportion equation
344.70 : 515.70 = 236.70 : x - Step 2: Convert to fraction form
344.70/515.70 = 236.70/x - Step 3: Cross multiply
344.70x = 515.70 × 236.70 - Step 4: Simplify right side
344.70x = 122,066.19 - Step 5: Solve for x
x = 122,066.19/344.70 - Step 6: Final answer
x = 354.12
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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.