Finding the Fourth Proportional to 173,211.80, 259,817.70 and 138,219.80
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Solution
The fourth proportional to 173,211.80, 259,817.70 and 138,219.80 is: 207,329.70
Step by Step Solution
- Step 1: Write the proportion equation
173,211.80 : 259,817.70 = 138,219.80 : x - Step 2: Convert to fraction form
173,211.80/259,817.70 = 138,219.80/x - Step 3: Cross multiply
173,211.80x = 259,817.70 × 138,219.80 - Step 4: Simplify right side
173,211.80x = 35,911,950,530.46 - Step 5: Solve for x
x = 35,911,950,530.46/173,211.80 - Step 6: Final answer
x = 207,329.70
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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.