Finding the Fourth Proportional to 281,040.06, 421,155.90 and 121,072.08
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Solution
The fourth proportional to 281,040.06, 421,155.90 and 121,072.08 is: 181,433.99
Step by Step Solution
- Step 1: Write the proportion equation
281,040.06 : 421,155.90 = 121,072.08 : x - Step 2: Convert to fraction form
281,040.06/421,155.90 = 121,072.08/x - Step 3: Cross multiply
281,040.06x = 421,155.90 × 121,072.08 - Step 4: Simplify right side
281,040.06x = 50,990,220,817.27 - Step 5: Solve for x
x = 50,990,220,817.27/281,040.06 - Step 6: Final answer
x = 181,433.99
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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.