Finding the Fourth Proportional to 361.99, 542.99 and 254.26
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Solution
The fourth proportional to 361.99, 542.99 and 254.26 is: 381.39
Step by Step Solution
- Step 1: Write the proportion equation
361.99 : 542.99 = 254.26 : x - Step 2: Convert to fraction form
361.99/542.99 = 254.26/x - Step 3: Cross multiply
361.99x = 542.99 × 254.26 - Step 4: Simplify right side
361.99x = 138,060.86 - Step 5: Solve for x
x = 138,060.86/361.99 - Step 6: Final answer
x = 381.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.