Finding the Fourth Proportional to 324.17, 447.13 and 207.68
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Solution
The fourth proportional to 324.17, 447.13 and 207.68 is: 286.45
Step by Step Solution
- Step 1: Write the proportion equation
324.17 : 447.13 = 207.68 : x - Step 2: Convert to fraction form
324.17/447.13 = 207.68/x - Step 3: Cross multiply
324.17x = 447.13 × 207.68 - Step 4: Simplify right side
324.17x = 92,856.68 - Step 5: Solve for x
x = 92,856.68/324.17 - Step 6: Final answer
x = 286.45
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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.