Finding the Fourth Proportional to 236.99, 355.48 and 74.68
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Solution
The fourth proportional to 236.99, 355.48 and 74.68 is: 112.01
Step by Step Solution
- Step 1: Write the proportion equation
236.99 : 355.48 = 74.68 : x - Step 2: Convert to fraction form
236.99/355.48 = 74.68/x - Step 3: Cross multiply
236.99x = 355.48 × 74.68 - Step 4: Simplify right side
236.99x = 26,546.17 - Step 5: Solve for x
x = 26,546.17/236.99 - Step 6: Final answer
x = 112.01
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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.