Finding the Fourth Proportional to 213,630.28, 320,446.50 and 55,859.08
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Solution
The fourth proportional to 213,630.28, 320,446.50 and 55,859.08 is: 83,788.90
Step by Step Solution
- Step 1: Write the proportion equation
213,630.28 : 320,446.50 = 55,859.08 : x - Step 2: Convert to fraction form
213,630.28/320,446.50 = 55,859.08/x - Step 3: Cross multiply
213,630.28x = 320,446.50 × 55,859.08 - Step 4: Simplify right side
213,630.28x = 17,899,846,679.22 - Step 5: Solve for x
x = 17,899,846,679.22/213,630.28 - Step 6: Final answer
x = 83,788.90
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1.5x scale
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.