Finding the Fourth Proportional to 261,394.60, 392,091.90 and 202,272.70
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Solution
The fourth proportional to 261,394.60, 392,091.90 and 202,272.70 is: 303,409.05
Step by Step Solution
- Step 1: Write the proportion equation
261,394.60 : 392,091.90 = 202,272.70 : x - Step 2: Convert to fraction form
261,394.60/392,091.90 = 202,272.70/x - Step 3: Cross multiply
261,394.60x = 392,091.90 × 202,272.70 - Step 4: Simplify right side
261,394.60x = 79,309,487,261.13 - Step 5: Solve for x
x = 79,309,487,261.13/261,394.60 - Step 6: Final answer
x = 303,409.05
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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.