Finding the Fourth Proportional to 296.99, 447.21 and 220.49
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Solution
The fourth proportional to 296.99, 447.21 and 220.49 is: 332.02
Step by Step Solution
- Step 1: Write the proportion equation
296.99 : 447.21 = 220.49 : x - Step 2: Convert to fraction form
296.99/447.21 = 220.49/x - Step 3: Cross multiply
296.99x = 447.21 × 220.49 - Step 4: Simplify right side
296.99x = 98,605.33 - Step 5: Solve for x
x = 98,605.33/296.99 - Step 6: Final answer
x = 332.02
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.