Finding the Fourth Proportional to 318.26, 477.84 and 203.42
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Solution
The fourth proportional to 318.26, 477.84 and 203.42 is: 305.42
Step by Step Solution
- Step 1: Write the proportion equation
318.26 : 477.84 = 203.42 : x - Step 2: Convert to fraction form
318.26/477.84 = 203.42/x - Step 3: Cross multiply
318.26x = 477.84 × 203.42 - Step 4: Simplify right side
318.26x = 97,202.21 - Step 5: Solve for x
x = 97,202.21/318.26 - Step 6: Final answer
x = 305.42
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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.