Finding the Fourth Proportional to 217.29, 325.95 and 54.99
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Solution
The fourth proportional to 217.29, 325.95 and 54.99 is: 82.49
Step by Step Solution
- Step 1: Write the proportion equation
217.29 : 325.95 = 54.99 : x - Step 2: Convert to fraction form
217.29/325.95 = 54.99/x - Step 3: Cross multiply
217.29x = 325.95 × 54.99 - Step 4: Simplify right side
217.29x = 17,923.99 - Step 5: Solve for x
x = 17,923.99/217.29 - Step 6: Final answer
x = 82.49
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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.