Finding the Fourth Proportional to 361.79, 542.53 and 114.91
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Solution
The fourth proportional to 361.79, 542.53 and 114.91 is: 172.32
Step by Step Solution
- Step 1: Write the proportion equation
361.79 : 542.53 = 114.91 : x - Step 2: Convert to fraction form
361.79/542.53 = 114.91/x - Step 3: Cross multiply
361.79x = 542.53 × 114.91 - Step 4: Simplify right side
361.79x = 62,342.12 - Step 5: Solve for x
x = 62,342.12/361.79 - Step 6: Final answer
x = 172.32
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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.