Finding the Fourth Proportional to 363.18, 545.08 and 253.53
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Solution
The fourth proportional to 363.18, 545.08 and 253.53 is: 380.51
Step by Step Solution
- Step 1: Write the proportion equation
363.18 : 545.08 = 253.53 : x - Step 2: Convert to fraction form
363.18/545.08 = 253.53/x - Step 3: Cross multiply
363.18x = 545.08 × 253.53 - Step 4: Simplify right side
363.18x = 138,193.97 - Step 5: Solve for x
x = 138,193.97/363.18 - Step 6: Final answer
x = 380.51
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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.