Finding the Fourth Proportional to 361.96, 542.99 and 207.85
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Solution
The fourth proportional to 361.96, 542.99 and 207.85 is: 311.80
Step by Step Solution
- Step 1: Write the proportion equation
361.96 : 542.99 = 207.85 : x - Step 2: Convert to fraction form
361.96/542.99 = 207.85/x - Step 3: Cross multiply
361.96x = 542.99 × 207.85 - Step 4: Simplify right side
361.96x = 112,860.47 - Step 5: Solve for x
x = 112,860.47/361.96 - Step 6: Final answer
x = 311.80
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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.