Finding the Fourth Proportional to 268.99, 403.65 and 132.05
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Solution
The fourth proportional to 268.99, 403.65 and 132.05 is: 198.16
Step by Step Solution
- Step 1: Write the proportion equation
268.99 : 403.65 = 132.05 : x - Step 2: Convert to fraction form
268.99/403.65 = 132.05/x - Step 3: Cross multiply
268.99x = 403.65 × 132.05 - Step 4: Simplify right side
268.99x = 53,302.99 - Step 5: Solve for x
x = 53,302.99/268.99 - Step 6: Final answer
x = 198.16
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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.