Finding the Fourth Proportional to 236.12, 354.65 and 144.99
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Solution
The fourth proportional to 236.12, 354.65 and 144.99 is: 217.78
Step by Step Solution
- Step 1: Write the proportion equation
236.12 : 354.65 = 144.99 : x - Step 2: Convert to fraction form
236.12/354.65 = 144.99/x - Step 3: Cross multiply
236.12x = 354.65 × 144.99 - Step 4: Simplify right side
236.12x = 51,419.98 - Step 5: Solve for x
x = 51,419.98/236.12 - Step 6: Final answer
x = 217.78
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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.