Finding the Fourth Proportional to 325.43, 487.99 and 108.94
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Solution
The fourth proportional to 325.43, 487.99 and 108.94 is: 163.35
Step by Step Solution
- Step 1: Write the proportion equation
325.43 : 487.99 = 108.94 : x - Step 2: Convert to fraction form
325.43/487.99 = 108.94/x - Step 3: Cross multiply
325.43x = 487.99 × 108.94 - Step 4: Simplify right side
325.43x = 53,160.14 - Step 5: Solve for x
x = 53,160.14/325.43 - Step 6: Final answer
x = 163.35
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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.