Finding the Fourth Proportional to 317.59, 438.19 and 193.26
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Solution
The fourth proportional to 317.59, 438.19 and 193.26 is: 266.65
Step by Step Solution
- Step 1: Write the proportion equation
317.59 : 438.19 = 193.26 : x - Step 2: Convert to fraction form
317.59/438.19 = 193.26/x - Step 3: Cross multiply
317.59x = 438.19 × 193.26 - Step 4: Simplify right side
317.59x = 84,684.60 - Step 5: Solve for x
x = 84,684.60/317.59 - Step 6: Final answer
x = 266.65
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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.