Finding the Fourth Proportional to 217.17, 325.60 and 112.95
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Solution
The fourth proportional to 217.17, 325.60 and 112.95 is: 169.34
Step by Step Solution
- Step 1: Write the proportion equation
217.17 : 325.60 = 112.95 : x - Step 2: Convert to fraction form
217.17/325.60 = 112.95/x - Step 3: Cross multiply
217.17x = 325.60 × 112.95 - Step 4: Simplify right side
217.17x = 36,776.24 - Step 5: Solve for x
x = 36,776.24/217.17 - Step 6: Final answer
x = 169.34
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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.