Finding the Fourth Proportional to 198,452.12, 273,865.80 and 107,808.75
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Solution
The fourth proportional to 198,452.12, 273,865.80 and 107,808.75 is: 148,777.10
Step by Step Solution
- Step 1: Write the proportion equation
198,452.12 : 273,865.80 = 107,808.75 : x - Step 2: Convert to fraction form
198,452.12/273,865.80 = 107,808.75/x - Step 3: Cross multiply
198,452.12x = 273,865.80 × 107,808.75 - Step 4: Simplify right side
198,452.12x = 29,525,129,565.75 - Step 5: Solve for x
x = 29,525,129,565.75/198,452.12 - Step 6: Final answer
x = 148,777.10
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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.