Finding the Fourth Proportional to 396.11, 545.99 and 368.57
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Solution
The fourth proportional to 396.11, 545.99 and 368.57 is: 508.02
Step by Step Solution
- Step 1: Write the proportion equation
396.11 : 545.99 = 368.57 : x - Step 2: Convert to fraction form
396.11/545.99 = 368.57/x - Step 3: Cross multiply
396.11x = 545.99 × 368.57 - Step 4: Simplify right side
396.11x = 201,230.96 - Step 5: Solve for x
x = 201,230.96/396.11 - Step 6: Final answer
x = 508.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.