Finding the Fourth Proportional to 504.75, 696.55 and 283.70
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Solution
The fourth proportional to 504.75, 696.55 and 283.70 is: 391.50
Step by Step Solution
- Step 1: Write the proportion equation
504.75 : 696.55 = 283.70 : x - Step 2: Convert to fraction form
504.75/696.55 = 283.70/x - Step 3: Cross multiply
504.75x = 696.55 × 283.70 - Step 4: Simplify right side
504.75x = 197,611.24 - Step 5: Solve for x
x = 197,611.24/504.75 - Step 6: Final answer
x = 391.50
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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.