Finding the Fourth Proportional to 850.76, 1,276.34 and 302.99
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Solution
The fourth proportional to 850.76, 1,276.34 and 302.99 is: 454.56
Step by Step Solution
- Step 1: Write the proportion equation
850.76 : 1,276.34 = 302.99 : x - Step 2: Convert to fraction form
850.76/1,276.34 = 302.99/x - Step 3: Cross multiply
850.76x = 1,276.34 × 302.99 - Step 4: Simplify right side
850.76x = 386,718.26 - Step 5: Solve for x
x = 386,718.26/850.76 - Step 6: Final answer
x = 454.56
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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.