Finding the Fourth Proportional to 302.12, 416.93 and 171.12
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Solution
The fourth proportional to 302.12, 416.93 and 171.12 is: 236.15
Step by Step Solution
- Step 1: Write the proportion equation
302.12 : 416.93 = 171.12 : x - Step 2: Convert to fraction form
302.12/416.93 = 171.12/x - Step 3: Cross multiply
302.12x = 416.93 × 171.12 - Step 4: Simplify right side
302.12x = 71,344.21 - Step 5: Solve for x
x = 71,344.21/302.12 - Step 6: Final answer
x = 236.15
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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.