Finding the Fourth Proportional to 748.60, 1,122.98 and 254.99
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Solution
The fourth proportional to 748.60, 1,122.98 and 254.99 is: 382.52
Step by Step Solution
- Step 1: Write the proportion equation
748.60 : 1,122.98 = 254.99 : x - Step 2: Convert to fraction form
748.60/1,122.98 = 254.99/x - Step 3: Cross multiply
748.60x = 1,122.98 × 254.99 - Step 4: Simplify right side
748.60x = 286,350.20 - Step 5: Solve for x
x = 286,350.20/748.60 - Step 6: Final answer
x = 382.52
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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.