Finding the Fourth Proportional to 397.99, 547.49 and 324.14
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Solution
The fourth proportional to 397.99, 547.49 and 324.14 is: 445.90
Step by Step Solution
- Step 1: Write the proportion equation
397.99 : 547.49 = 324.14 : x - Step 2: Convert to fraction form
397.99/547.49 = 324.14/x - Step 3: Cross multiply
397.99x = 547.49 × 324.14 - Step 4: Simplify right side
397.99x = 177,461.79 - Step 5: Solve for x
x = 177,461.79/397.99 - Step 6: Final answer
x = 445.90
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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.