Finding the Fourth Proportional to 405,919.31, 560,163.11 and 224,620.20
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Solution
The fourth proportional to 405,919.31, 560,163.11 and 224,620.20 is: 309,972.80
Step by Step Solution
- Step 1: Write the proportion equation
405,919.31 : 560,163.11 = 224,620.20 : x - Step 2: Convert to fraction form
405,919.31/560,163.11 = 224,620.20/x - Step 3: Cross multiply
405,919.31x = 560,163.11 × 224,620.20 - Step 4: Simplify right side
405,919.31x = 125,823,947,000.01 - Step 5: Solve for x
x = 125,823,947,000.01/405,919.31 - Step 6: Final answer
x = 309,972.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.