Finding the Fourth Proportional to 287,687.58, 431,677.17 and 193,996.50
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Solution
The fourth proportional to 287,687.58, 431,677.17 and 193,996.50 is: 291,093.07
Step by Step Solution
- Step 1: Write the proportion equation
287,687.58 : 431,677.17 = 193,996.50 : x - Step 2: Convert to fraction form
287,687.58/431,677.17 = 193,996.50/x - Step 3: Cross multiply
287,687.58x = 431,677.17 × 193,996.50 - Step 4: Simplify right side
287,687.58x = 83,743,860,109.91 - Step 5: Solve for x
x = 83,743,860,109.91/287,687.58 - Step 6: Final answer
x = 291,093.07
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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.