Finding the Fourth Proportional to 316.26, 474.64 and 170.18
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Solution
The fourth proportional to 316.26, 474.64 and 170.18 is: 255.40
Step by Step Solution
- Step 1: Write the proportion equation
316.26 : 474.64 = 170.18 : x - Step 2: Convert to fraction form
316.26/474.64 = 170.18/x - Step 3: Cross multiply
316.26x = 474.64 × 170.18 - Step 4: Simplify right side
316.26x = 80,774.24 - Step 5: Solve for x
x = 80,774.24/316.26 - Step 6: Final answer
x = 255.40
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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.