Finding the Fourth Proportional to 171.36, 235.08 and 167.28
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Solution
The fourth proportional to 171.36, 235.08 and 167.28 is: 229.48
Step by Step Solution
- Step 1: Write the proportion equation
171.36 : 235.08 = 167.28 : x - Step 2: Convert to fraction form
171.36/235.08 = 167.28/x - Step 3: Cross multiply
171.36x = 235.08 × 167.28 - Step 4: Simplify right side
171.36x = 39,324.18 - Step 5: Solve for x
x = 39,324.18/171.36 - Step 6: Final answer
x = 229.48
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.