Finding the Fourth Proportional to 213,239.85, 294,288.29 and 122,625.15
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Solution
The fourth proportional to 213,239.85, 294,288.29 and 122,625.15 is: 169,232.65
Step by Step Solution
- Step 1: Write the proportion equation
213,239.85 : 294,288.29 = 122,625.15 : x - Step 2: Convert to fraction form
213,239.85/294,288.29 = 122,625.15/x - Step 3: Cross multiply
213,239.85x = 294,288.29 × 122,625.15 - Step 4: Simplify right side
213,239.85x = 36,087,145,704.49 - Step 5: Solve for x
x = 36,087,145,704.49/213,239.85 - Step 6: Final answer
x = 169,232.65
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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.