Finding the Fourth Proportional to 287,226.09, 430,838.46 and 76,864.02
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Solution
The fourth proportional to 287,226.09, 430,838.46 and 76,864.02 is: 115,295.85
Step by Step Solution
- Step 1: Write the proportion equation
287,226.09 : 430,838.46 = 76,864.02 : x - Step 2: Convert to fraction form
287,226.09/430,838.46 = 76,864.02/x - Step 3: Cross multiply
287,226.09x = 430,838.46 × 76,864.02 - Step 4: Simplify right side
287,226.09x = 33,115,976,006.21 - Step 5: Solve for x
x = 33,115,976,006.21/287,226.09 - Step 6: Final answer
x = 115,295.85
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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.