Finding the Fourth Proportional to 331.22, 457.08 and 183.84
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Solution
The fourth proportional to 331.22, 457.08 and 183.84 is: 253.69
Step by Step Solution
- Step 1: Write the proportion equation
331.22 : 457.08 = 183.84 : x - Step 2: Convert to fraction form
331.22/457.08 = 183.84/x - Step 3: Cross multiply
331.22x = 457.08 × 183.84 - Step 4: Simplify right side
331.22x = 84,027.18 - Step 5: Solve for x
x = 84,027.18/331.22 - Step 6: Final answer
x = 253.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.