Finding the Fourth Proportional to 268.66, 402.99 and 122.63
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Solution
The fourth proportional to 268.66, 402.99 and 122.63 is: 183.95
Step by Step Solution
- Step 1: Write the proportion equation
268.66 : 402.99 = 122.63 : x - Step 2: Convert to fraction form
268.66/402.99 = 122.63/x - Step 3: Cross multiply
268.66x = 402.99 × 122.63 - Step 4: Simplify right side
268.66x = 49,419.67 - Step 5: Solve for x
x = 49,419.67/268.66 - Step 6: Final answer
x = 183.95
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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.