Finding the Fourth Proportional to 287,145.51, 430,779.81 and 87,481.99
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Solution
The fourth proportional to 287,145.51, 430,779.81 and 87,481.99 is: 131,241.73
Step by Step Solution
- Step 1: Write the proportion equation
287,145.51 : 430,779.81 = 87,481.99 : x - Step 2: Convert to fraction form
287,145.51/430,779.81 = 87,481.99/x - Step 3: Cross multiply
287,145.51x = 430,779.81 × 87,481.99 - Step 4: Simplify right side
287,145.51x = 37,685,474,593.21 - Step 5: Solve for x
x = 37,685,474,593.21/287,145.51 - Step 6: Final answer
x = 131,241.73
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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.