Finding the Fourth Proportional to 287,145.01, 430,779.06 and 87,481.49
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Solution
The fourth proportional to 287,145.01, 430,779.06 and 87,481.49 is: 131,240.98
Step by Step Solution
- Step 1: Write the proportion equation
287,145.01 : 430,779.06 = 87,481.49 : x - Step 2: Convert to fraction form
287,145.01/430,779.06 = 87,481.49/x - Step 3: Cross multiply
287,145.01x = 430,779.06 × 87,481.49 - Step 4: Simplify right side
287,145.01x = 37,685,193,592.19 - Step 5: Solve for x
x = 37,685,193,592.19/287,145.01 - Step 6: Final answer
x = 131,240.98
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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.