Finding the Fourth Proportional to 407.57, 611.49 and 297.99
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Solution
The fourth proportional to 407.57, 611.49 and 297.99 is: 447.09
Step by Step Solution
- Step 1: Write the proportion equation
407.57 : 611.49 = 297.99 : x - Step 2: Convert to fraction form
407.57/611.49 = 297.99/x - Step 3: Cross multiply
407.57x = 611.49 × 297.99 - Step 4: Simplify right side
407.57x = 182,217.91 - Step 5: Solve for x
x = 182,217.91/407.57 - Step 6: Final answer
x = 447.09
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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.