Finding the Fourth Proportional to 212,755.87, 319,230.67 and 79,646.49
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Solution
The fourth proportional to 212,755.87, 319,230.67 and 79,646.49 is: 119,506.00
Step by Step Solution
- Step 1: Write the proportion equation
212,755.87 : 319,230.67 = 79,646.49 : x - Step 2: Convert to fraction form
212,755.87/319,230.67 = 79,646.49/x - Step 3: Cross multiply
212,755.87x = 319,230.67 × 79,646.49 - Step 4: Simplify right side
212,755.87x = 25,425,602,316.07 - Step 5: Solve for x
x = 25,425,602,316.07/212,755.87 - Step 6: Final answer
x = 119,506.00
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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.