Finding the Fourth Proportional to 309.99, 464.92 and 249.48
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Solution
The fourth proportional to 309.99, 464.92 and 249.48 is: 374.17
Step by Step Solution
- Step 1: Write the proportion equation
309.99 : 464.92 = 249.48 : x - Step 2: Convert to fraction form
309.99/464.92 = 249.48/x - Step 3: Cross multiply
309.99x = 464.92 × 249.48 - Step 4: Simplify right side
309.99x = 115,988.24 - Step 5: Solve for x
x = 115,988.24/309.99 - Step 6: Final answer
x = 374.17
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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.