Finding the Fourth Proportional to 400.19, 550.94 and 350.99
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Solution
The fourth proportional to 400.19, 550.94 and 350.99 is: 483.21
Step by Step Solution
- Step 1: Write the proportion equation
400.19 : 550.94 = 350.99 : x - Step 2: Convert to fraction form
400.19/550.94 = 350.99/x - Step 3: Cross multiply
400.19x = 550.94 × 350.99 - Step 4: Simplify right side
400.19x = 193,374.43 - Step 5: Solve for x
x = 193,374.43/400.19 - Step 6: Final answer
x = 483.21
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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.