Finding the Fourth Proportional to 406.53, 609.99 and 252.12
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Solution
The fourth proportional to 406.53, 609.99 and 252.12 is: 378.30
Step by Step Solution
- Step 1: Write the proportion equation
406.53 : 609.99 = 252.12 : x - Step 2: Convert to fraction form
406.53/609.99 = 252.12/x - Step 3: Cross multiply
406.53x = 609.99 × 252.12 - Step 4: Simplify right side
406.53x = 153,790.68 - Step 5: Solve for x
x = 153,790.68/406.53 - Step 6: Final answer
x = 378.30
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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.