Finding the Fourth Proportional to 235.24, 324.68 and 161.65
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Solution
The fourth proportional to 235.24, 324.68 and 161.65 is: 223.11
Step by Step Solution
- Step 1: Write the proportion equation
235.24 : 324.68 = 161.65 : x - Step 2: Convert to fraction form
235.24/324.68 = 161.65/x - Step 3: Cross multiply
235.24x = 324.68 × 161.65 - Step 4: Simplify right side
235.24x = 52,484.52 - Step 5: Solve for x
x = 52,484.52/235.24 - Step 6: Final answer
x = 223.11
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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.