Finding the Fourth Proportional to 304.91, 457.36 and 122.21
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Solution
The fourth proportional to 304.91, 457.36 and 122.21 is: 183.31
Step by Step Solution
- Step 1: Write the proportion equation
304.91 : 457.36 = 122.21 : x - Step 2: Convert to fraction form
304.91/457.36 = 122.21/x - Step 3: Cross multiply
304.91x = 457.36 × 122.21 - Step 4: Simplify right side
304.91x = 55,893.97 - Step 5: Solve for x
x = 55,893.97/304.91 - Step 6: Final answer
x = 183.31
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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.