Finding the Fourth Proportional to 287,113.14, 430,621.47 and 87,385.14
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Solution
The fourth proportional to 287,113.14, 430,621.47 and 87,385.14 is: 131,063.03
Step by Step Solution
- Step 1: Write the proportion equation
287,113.14 : 430,621.47 = 87,385.14 : x - Step 2: Convert to fraction form
287,113.14/430,621.47 = 87,385.14/x - Step 3: Cross multiply
287,113.14x = 430,621.47 × 87,385.14 - Step 4: Simplify right side
287,113.14x = 37,629,917,442.96 - Step 5: Solve for x
x = 37,629,917,442.96/287,113.14 - Step 6: Final answer
x = 131,063.03
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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.