Finding the Fourth Proportional to 366,961.20, 550,441.80 and 209,497.20
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Solution
The fourth proportional to 366,961.20, 550,441.80 and 209,497.20 is: 314,245.80
Step by Step Solution
- Step 1: Write the proportion equation
366,961.20 : 550,441.80 = 209,497.20 : x - Step 2: Convert to fraction form
366,961.20/550,441.80 = 209,497.20/x - Step 3: Cross multiply
366,961.20x = 550,441.80 × 209,497.20 - Step 4: Simplify right side
366,961.20x = 115,316,015,862.96 - Step 5: Solve for x
x = 115,316,015,862.96/366,961.20 - Step 6: Final answer
x = 314,245.80
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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.