Finding the Fourth Proportional to 213,649.58, 294,803.67 and 122,988.03
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Solution
The fourth proportional to 213,649.58, 294,803.67 and 122,988.03 is: 169,704.63
Step by Step Solution
- Step 1: Write the proportion equation
213,649.58 : 294,803.67 = 122,988.03 : x - Step 2: Convert to fraction form
213,649.58/294,803.67 = 122,988.03/x - Step 3: Cross multiply
213,649.58x = 294,803.67 × 122,988.03 - Step 4: Simplify right side
213,649.58x = 36,257,322,917.54 - Step 5: Solve for x
x = 36,257,322,917.54/213,649.58 - Step 6: Final answer
x = 169,704.63
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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.