Finding the Fourth Proportional to 173,205.80, 259,808.70 and 138,213.80
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Solution
The fourth proportional to 173,205.80, 259,808.70 and 138,213.80 is: 207,320.70
Step by Step Solution
- Step 1: Write the proportion equation
173,205.80 : 259,808.70 = 138,213.80 : x - Step 2: Convert to fraction form
173,205.80/259,808.70 = 138,213.80/x - Step 3: Cross multiply
173,205.80x = 259,808.70 × 138,213.80 - Step 4: Simplify right side
173,205.80x = 35,909,147,700.06 - Step 5: Solve for x
x = 35,909,147,700.06/173,205.80 - Step 6: Final answer
x = 207,320.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.