Finding the Fourth Proportional to 316.26, 472.14 and 267.66
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Solution
The fourth proportional to 316.26, 472.14 and 267.66 is: 399.59
Step by Step Solution
- Step 1: Write the proportion equation
316.26 : 472.14 = 267.66 : x - Step 2: Convert to fraction form
316.26/472.14 = 267.66/x - Step 3: Cross multiply
316.26x = 472.14 × 267.66 - Step 4: Simplify right side
316.26x = 126,372.99 - Step 5: Solve for x
x = 126,372.99/316.26 - Step 6: Final answer
x = 399.59
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.