Finding the Fourth Proportional to 311.97, 467.28 and 202.08
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Solution
The fourth proportional to 311.97, 467.28 and 202.08 is: 302.68
Step by Step Solution
- Step 1: Write the proportion equation
311.97 : 467.28 = 202.08 : x - Step 2: Convert to fraction form
311.97/467.28 = 202.08/x - Step 3: Cross multiply
311.97x = 467.28 × 202.08 - Step 4: Simplify right side
311.97x = 94,427.94 - Step 5: Solve for x
x = 94,427.94/311.97 - Step 6: Final answer
x = 302.68
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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.