Finding the Fourth Proportional to 281,699.70, 421,771.95 and 219,491.70
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Solution
The fourth proportional to 281,699.70, 421,771.95 and 219,491.70 is: 328,631.67
Step by Step Solution
- Step 1: Write the proportion equation
281,699.70 : 421,771.95 = 219,491.70 : x - Step 2: Convert to fraction form
281,699.70/421,771.95 = 219,491.70/x - Step 3: Cross multiply
281,699.70x = 421,771.95 × 219,491.70 - Step 4: Simplify right side
281,699.70x = 92,575,442,317.82 - Step 5: Solve for x
x = 92,575,442,317.82/281,699.70 - Step 6: Final answer
x = 328,631.67
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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.