Finding the Fourth Proportional to 362,509.20, 543,107.70 and 310,021.20
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Solution
The fourth proportional to 362,509.20, 543,107.70 and 310,021.20 is: 464,470.70
Step by Step Solution
- Step 1: Write the proportion equation
362,509.20 : 543,107.70 = 310,021.20 : x - Step 2: Convert to fraction form
362,509.20/543,107.70 = 310,021.20/x - Step 3: Cross multiply
362,509.20x = 543,107.70 × 310,021.20 - Step 4: Simplify right side
362,509.20x = 168,374,900,883.24 - Step 5: Solve for x
x = 168,374,900,883.24/362,509.20 - Step 6: Final answer
x = 464,470.70
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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.