Finding the Fourth Proportional to 416,205.68, 624,387.24 and 131,967.80
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Solution
The fourth proportional to 416,205.68, 624,387.24 and 131,967.80 is: 197,976.66
Step by Step Solution
- Step 1: Write the proportion equation
416,205.68 : 624,387.24 = 131,967.80 : x - Step 2: Convert to fraction form
416,205.68/624,387.24 = 131,967.80/x - Step 3: Cross multiply
416,205.68x = 624,387.24 × 131,967.80 - Step 4: Simplify right side
416,205.68x = 82,399,010,410.87 - Step 5: Solve for x
x = 82,399,010,410.87/416,205.68 - Step 6: Final answer
x = 197,976.66
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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.