Finding the Fourth Proportional to 198,263.64, 273,604.09 and 107,619.55
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Solution
The fourth proportional to 198,263.64, 273,604.09 and 107,619.55 is: 148,515.12
Step by Step Solution
- Step 1: Write the proportion equation
198,263.64 : 273,604.09 = 107,619.55 : x - Step 2: Convert to fraction form
198,263.64/273,604.09 = 107,619.55/x - Step 3: Cross multiply
198,263.64x = 273,604.09 × 107,619.55 - Step 4: Simplify right side
198,263.64x = 29,445,149,043.96 - Step 5: Solve for x
x = 29,445,149,043.96/198,263.64 - Step 6: Final answer
x = 148,515.12
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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.