Finding the Fourth Proportional to 331.84, 457.68 and 226.99
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Solution
The fourth proportional to 331.84, 457.68 and 226.99 is: 313.07
Step by Step Solution
- Step 1: Write the proportion equation
331.84 : 457.68 = 226.99 : x - Step 2: Convert to fraction form
331.84/457.68 = 226.99/x - Step 3: Cross multiply
331.84x = 457.68 × 226.99 - Step 4: Simplify right side
331.84x = 103,888.78 - Step 5: Solve for x
x = 103,888.78/331.84 - Step 6: Final answer
x = 313.07
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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.