Finding the Fourth Proportional to 305.26, 421.26 and 167.26
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Solution
The fourth proportional to 305.26, 421.26 and 167.26 is: 230.82
Step by Step Solution
- Step 1: Write the proportion equation
305.26 : 421.26 = 167.26 : x - Step 2: Convert to fraction form
305.26/421.26 = 167.26/x - Step 3: Cross multiply
305.26x = 421.26 × 167.26 - Step 4: Simplify right side
305.26x = 70,459.95 - Step 5: Solve for x
x = 70,459.95/305.26 - Step 6: Final answer
x = 230.82
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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.