Finding the Fourth Proportional to 242.34, 363.15 and 145.92
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Solution
The fourth proportional to 242.34, 363.15 and 145.92 is: 218.66
Step by Step Solution
- Step 1: Write the proportion equation
242.34 : 363.15 = 145.92 : x - Step 2: Convert to fraction form
242.34/363.15 = 145.92/x - Step 3: Cross multiply
242.34x = 363.15 × 145.92 - Step 4: Simplify right side
242.34x = 52,990.85 - Step 5: Solve for x
x = 52,990.85/242.34 - Step 6: Final answer
x = 218.66
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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.