Finding the Fourth Proportional to 363.13, 544.93 and 135.13
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Solution
The fourth proportional to 363.13, 544.93 and 135.13 is: 202.78
Step by Step Solution
- Step 1: Write the proportion equation
363.13 : 544.93 = 135.13 : x - Step 2: Convert to fraction form
363.13/544.93 = 135.13/x - Step 3: Cross multiply
363.13x = 544.93 × 135.13 - Step 4: Simplify right side
363.13x = 73,633.67 - Step 5: Solve for x
x = 73,633.67/363.13 - Step 6: Final answer
x = 202.78
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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.