Finding the Fourth Proportional to 261,660.40, 392,490.60 and 261,660.40
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Solution
The fourth proportional to 261,660.40, 392,490.60 and 261,660.40 is: 392,490.60
Step by Step Solution
- Step 1: Write the proportion equation
261,660.40 : 392,490.60 = 261,660.40 : x - Step 2: Convert to fraction form
261,660.40/392,490.60 = 261,660.40/x - Step 3: Cross multiply
261,660.40x = 392,490.60 × 261,660.40 - Step 4: Simplify right side
261,660.40x = 102,699,247,392.24 - Step 5: Solve for x
x = 102,699,247,392.24/261,660.40 - Step 6: Final answer
x = 392,490.60
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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.