Finding the Fourth Proportional to 385.68, 532.26 and 230.44
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Solution
The fourth proportional to 385.68, 532.26 and 230.44 is: 318.02
Step by Step Solution
- Step 1: Write the proportion equation
385.68 : 532.26 = 230.44 : x - Step 2: Convert to fraction form
385.68/532.26 = 230.44/x - Step 3: Cross multiply
385.68x = 532.26 × 230.44 - Step 4: Simplify right side
385.68x = 122,653.99 - Step 5: Solve for x
x = 122,653.99/385.68 - Step 6: Final answer
x = 318.02
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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.