Finding the Fourth Proportional to 302.09, 453.74 and 220.68
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Solution
The fourth proportional to 302.09, 453.74 and 220.68 is: 331.46
Step by Step Solution
- Step 1: Write the proportion equation
302.09 : 453.74 = 220.68 : x - Step 2: Convert to fraction form
302.09/453.74 = 220.68/x - Step 3: Cross multiply
302.09x = 453.74 × 220.68 - Step 4: Simplify right side
302.09x = 100,130.24 - Step 5: Solve for x
x = 100,130.24/302.09 - Step 6: Final answer
x = 331.46
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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.