Finding the Fourth Proportional to 464.08, 640.44 and 267.68
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Solution
The fourth proportional to 464.08, 640.44 and 267.68 is: 369.40
Step by Step Solution
- Step 1: Write the proportion equation
464.08 : 640.44 = 267.68 : x - Step 2: Convert to fraction form
464.08/640.44 = 267.68/x - Step 3: Cross multiply
464.08x = 640.44 × 267.68 - Step 4: Simplify right side
464.08x = 171,432.98 - Step 5: Solve for x
x = 171,432.98/464.08 - Step 6: Final answer
x = 369.40
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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.