Finding the Fourth Proportional to 428,044.14, 642,108.69 and 158,243.00
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Solution
The fourth proportional to 428,044.14, 642,108.69 and 158,243.00 is: 237,380.20
Step by Step Solution
- Step 1: Write the proportion equation
428,044.14 : 642,108.69 = 158,243.00 : x - Step 2: Convert to fraction form
428,044.14/642,108.69 = 158,243.00/x - Step 3: Cross multiply
428,044.14x = 642,108.69 × 158,243.00 - Step 4: Simplify right side
428,044.14x = 101,609,202,221.13 - Step 5: Solve for x
x = 101,609,202,221.13/428,044.14 - Step 6: Final answer
x = 237,380.20
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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.