Finding the Fourth Proportional to 331.73, 457.79 and 207.44
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Solution
The fourth proportional to 331.73, 457.79 and 207.44 is: 286.26
Step by Step Solution
- Step 1: Write the proportion equation
331.73 : 457.79 = 207.44 : x - Step 2: Convert to fraction form
331.73/457.79 = 207.44/x - Step 3: Cross multiply
331.73x = 457.79 × 207.44 - Step 4: Simplify right side
331.73x = 94,960.63 - Step 5: Solve for x
x = 94,960.63/331.73 - Step 6: Final answer
x = 286.26
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.