Finding the Fourth Proportional to 287,576.12, 431,364.20 and 87,897.08
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Solution
The fourth proportional to 287,576.12, 431,364.20 and 87,897.08 is: 131,845.63
Step by Step Solution
- Step 1: Write the proportion equation
287,576.12 : 431,364.20 = 87,897.08 : x - Step 2: Convert to fraction form
287,576.12/431,364.20 = 87,897.08/x - Step 3: Cross multiply
287,576.12x = 431,364.20 × 87,897.08 - Step 4: Simplify right side
287,576.12x = 37,915,653,596.54 - Step 5: Solve for x
x = 37,915,653,596.54/287,576.12 - Step 6: Final answer
x = 131,845.63
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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.