Finding the Fourth Proportional to 261,963.92, 392,355.09 and 183,428.75
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Solution
The fourth proportional to 261,963.92, 392,355.09 and 183,428.75 is: 274,729.45
Step by Step Solution
- Step 1: Write the proportion equation
261,963.92 : 392,355.09 = 183,428.75 : x - Step 2: Convert to fraction form
261,963.92/392,355.09 = 183,428.75/x - Step 3: Cross multiply
261,963.92x = 392,355.09 × 183,428.75 - Step 4: Simplify right side
261,963.92x = 71,969,203,714.84 - Step 5: Solve for x
x = 71,969,203,714.84/261,963.92 - Step 6: Final answer
x = 274,729.45
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1.5x scale
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.