Finding the Fourth Proportional to 324.12, 447.48 and 207.75
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Solution
The fourth proportional to 324.12, 447.48 and 207.75 is: 286.82
Step by Step Solution
- Step 1: Write the proportion equation
324.12 : 447.48 = 207.75 : x - Step 2: Convert to fraction form
324.12/447.48 = 207.75/x - Step 3: Cross multiply
324.12x = 447.48 × 207.75 - Step 4: Simplify right side
324.12x = 92,963.97 - Step 5: Solve for x
x = 92,963.97/324.12 - Step 6: Final answer
x = 286.82
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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.