Finding the Fourth Proportional to 261,759.80, 392,701.21 and 84,260.15
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Solution
The fourth proportional to 261,759.80, 392,701.21 and 84,260.15 is: 126,410.02
Step by Step Solution
- Step 1: Write the proportion equation
261,759.80 : 392,701.21 = 84,260.15 : x - Step 2: Convert to fraction form
261,759.80/392,701.21 = 84,260.15/x - Step 3: Cross multiply
261,759.80x = 392,701.21 × 84,260.15 - Step 4: Simplify right side
261,759.80x = 33,089,060,474.97 - Step 5: Solve for x
x = 33,089,060,474.97/261,759.80 - Step 6: Final answer
x = 126,410.02
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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.