Finding the Fourth Proportional to 280,974.99, 421,243.38 and 190,779.87
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Solution
The fourth proportional to 280,974.99, 421,243.38 and 190,779.87 is: 286,021.03
Step by Step Solution
- Step 1: Write the proportion equation
280,974.99 : 421,243.38 = 190,779.87 : x - Step 2: Convert to fraction form
280,974.99/421,243.38 = 190,779.87/x - Step 3: Cross multiply
280,974.99x = 421,243.38 × 190,779.87 - Step 4: Simplify right side
280,974.99x = 80,364,757,274.76 - Step 5: Solve for x
x = 80,364,757,274.76/280,974.99 - Step 6: Final answer
x = 286,021.03
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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.