Finding the Fourth Proportional to 257.19, 354.96 and 163.95
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Solution
The fourth proportional to 257.19, 354.96 and 163.95 is: 226.28
Step by Step Solution
- Step 1: Write the proportion equation
257.19 : 354.96 = 163.95 : x - Step 2: Convert to fraction form
257.19/354.96 = 163.95/x - Step 3: Cross multiply
257.19x = 354.96 × 163.95 - Step 4: Simplify right side
257.19x = 58,195.69 - Step 5: Solve for x
x = 58,195.69/257.19 - Step 6: Final answer
x = 226.28
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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.