Finding the Fourth Proportional to 325.62, 487.08 and 267.18
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Solution
The fourth proportional to 325.62, 487.08 and 267.18 is: 399.67
Step by Step Solution
- Step 1: Write the proportion equation
325.62 : 487.08 = 267.18 : x - Step 2: Convert to fraction form
325.62/487.08 = 267.18/x - Step 3: Cross multiply
325.62x = 487.08 × 267.18 - Step 4: Simplify right side
325.62x = 130,137.99 - Step 5: Solve for x
x = 130,137.99/325.62 - Step 6: Final answer
x = 399.67
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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.