Finding the Fourth Proportional to 325,406.20, 488,546.70 and 207,599.80
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Solution
The fourth proportional to 325,406.20, 488,546.70 and 207,599.80 is: 311,678.75
Step by Step Solution
- Step 1: Write the proportion equation
325,406.20 : 488,546.70 = 207,599.80 : x - Step 2: Convert to fraction form
325,406.20/488,546.70 = 207,599.80/x - Step 3: Cross multiply
325,406.20x = 488,546.70 × 207,599.80 - Step 4: Simplify right side
325,406.20x = 101,422,197,210.66 - Step 5: Solve for x
x = 101,422,197,210.66/325,406.20 - Step 6: Final answer
x = 311,678.75
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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.