Finding the Fourth Proportional to 361.59, 542.54 and 178.99
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Solution
The fourth proportional to 361.59, 542.54 and 178.99 is: 268.56
Step by Step Solution
- Step 1: Write the proportion equation
361.59 : 542.54 = 178.99 : x - Step 2: Convert to fraction form
361.59/542.54 = 178.99/x - Step 3: Cross multiply
361.59x = 542.54 × 178.99 - Step 4: Simplify right side
361.59x = 97,109.23 - Step 5: Solve for x
x = 97,109.23/361.59 - Step 6: Final answer
x = 268.56
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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.