Finding the Fourth Proportional to 234.99, 324.36 and 136.71
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Solution
The fourth proportional to 234.99, 324.36 and 136.71 is: 188.70
Step by Step Solution
- Step 1: Write the proportion equation
234.99 : 324.36 = 136.71 : x - Step 2: Convert to fraction form
234.99/324.36 = 136.71/x - Step 3: Cross multiply
234.99x = 324.36 × 136.71 - Step 4: Simplify right side
234.99x = 44,343.26 - Step 5: Solve for x
x = 44,343.26/234.99 - Step 6: Final answer
x = 188.70
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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.