Finding the Fourth Proportional to 331.23, 457.09 and 183.87
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Solution
The fourth proportional to 331.23, 457.09 and 183.87 is: 253.74
Step by Step Solution
- Step 1: Write the proportion equation
331.23 : 457.09 = 183.87 : x - Step 2: Convert to fraction form
331.23/457.09 = 183.87/x - Step 3: Cross multiply
331.23x = 457.09 × 183.87 - Step 4: Simplify right side
331.23x = 84,045.14 - Step 5: Solve for x
x = 84,045.14/331.23 - Step 6: Final answer
x = 253.74
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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.