Finding the Fourth Proportional to 441.13, 661.70 and 132.99
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Solution
The fourth proportional to 441.13, 661.70 and 132.99 is: 199.49
Step by Step Solution
- Step 1: Write the proportion equation
441.13 : 661.70 = 132.99 : x - Step 2: Convert to fraction form
441.13/661.70 = 132.99/x - Step 3: Cross multiply
441.13x = 661.70 × 132.99 - Step 4: Simplify right side
441.13x = 87,998.16 - Step 5: Solve for x
x = 87,998.16/441.13 - Step 6: Final answer
x = 199.49
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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.