Finding the Fourth Proportional to 317.70, 438.75 and 244.26
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Solution
The fourth proportional to 317.70, 438.75 and 244.26 is: 337.33
Step by Step Solution
- Step 1: Write the proportion equation
317.70 : 438.75 = 244.26 : x - Step 2: Convert to fraction form
317.70/438.75 = 244.26/x - Step 3: Cross multiply
317.70x = 438.75 × 244.26 - Step 4: Simplify right side
317.70x = 107,169.08 - Step 5: Solve for x
x = 107,169.08/317.70 - Step 6: Final answer
x = 337.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.