Finding the Fourth Proportional to 212,729.10, 319,093.65 and 207,480.30
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Solution
The fourth proportional to 212,729.10, 319,093.65 and 207,480.30 is: 311,220.45
Step by Step Solution
- Step 1: Write the proportion equation
212,729.10 : 319,093.65 = 207,480.30 : x - Step 2: Convert to fraction form
212,729.10/319,093.65 = 207,480.30/x - Step 3: Cross multiply
212,729.10x = 319,093.65 × 207,480.30 - Step 4: Simplify right side
212,729.10x = 66,205,646,230.10 - Step 5: Solve for x
x = 66,205,646,230.10/212,729.10 - Step 6: Final answer
x = 311,220.45
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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.