Finding the Fourth Proportional to 324.21, 447.35 and 207.75
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Solution
The fourth proportional to 324.21, 447.35 and 207.75 is: 286.65
Step by Step Solution
- Step 1: Write the proportion equation
324.21 : 447.35 = 207.75 : x - Step 2: Convert to fraction form
324.21/447.35 = 207.75/x - Step 3: Cross multiply
324.21x = 447.35 × 207.75 - Step 4: Simplify right side
324.21x = 92,935.92 - Step 5: Solve for x
x = 92,935.92/324.21 - Step 6: Final answer
x = 286.65
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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.