Finding the Fourth Proportional to 382,138.20, 573,134.40 and 115,907.40
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Solution
The fourth proportional to 382,138.20, 573,134.40 and 115,907.40 is: 173,838.99
Step by Step Solution
- Step 1: Write the proportion equation
382,138.20 : 573,134.40 = 115,907.40 : x - Step 2: Convert to fraction form
382,138.20/573,134.40 = 115,907.40/x - Step 3: Cross multiply
382,138.20x = 573,134.40 × 115,907.40 - Step 4: Simplify right side
382,138.20x = 66,430,518,154.56 - Step 5: Solve for x
x = 66,430,518,154.56/382,138.20 - Step 6: Final answer
x = 173,838.99
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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.