Finding the Fourth Proportional to 385.26, 578.25 and 168.99
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Solution
The fourth proportional to 385.26, 578.25 and 168.99 is: 253.64
Step by Step Solution
- Step 1: Write the proportion equation
385.26 : 578.25 = 168.99 : x - Step 2: Convert to fraction form
385.26/578.25 = 168.99/x - Step 3: Cross multiply
385.26x = 578.25 × 168.99 - Step 4: Simplify right side
385.26x = 97,718.47 - Step 5: Solve for x
x = 97,718.47/385.26 - Step 6: Final answer
x = 253.64
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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.