Finding the Fourth Proportional to 406.99, 610.68 and 252.88
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Solution
The fourth proportional to 406.99, 610.68 and 252.88 is: 379.44
Step by Step Solution
- Step 1: Write the proportion equation
406.99 : 610.68 = 252.88 : x - Step 2: Convert to fraction form
406.99/610.68 = 252.88/x - Step 3: Cross multiply
406.99x = 610.68 × 252.88 - Step 4: Simplify right side
406.99x = 154,428.18 - Step 5: Solve for x
x = 154,428.18/406.99 - Step 6: Final answer
x = 379.44
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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.