Finding the Fourth Proportional to 213,738.45, 294,957.77 and 118,243.10
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Solution
The fourth proportional to 213,738.45, 294,957.77 and 118,243.10 is: 163,174.75
Step by Step Solution
- Step 1: Write the proportion equation
213,738.45 : 294,957.77 = 118,243.10 : x - Step 2: Convert to fraction form
213,738.45/294,957.77 = 118,243.10/x - Step 3: Cross multiply
213,738.45x = 294,957.77 × 118,243.10 - Step 4: Simplify right side
213,738.45x = 34,876,719,027.88 - Step 5: Solve for x
x = 34,876,719,027.88/213,738.45 - Step 6: Final answer
x = 163,174.75
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1.5x scale
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.