Finding the Fourth Proportional to 275,021.47, 412,428.52 and 115,108.49
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Solution
The fourth proportional to 275,021.47, 412,428.52 and 115,108.49 is: 172,619.34
Step by Step Solution
- Step 1: Write the proportion equation
275,021.47 : 412,428.52 = 115,108.49 : x - Step 2: Convert to fraction form
275,021.47/412,428.52 = 115,108.49/x - Step 3: Cross multiply
275,021.47x = 412,428.52 × 115,108.49 - Step 4: Simplify right side
275,021.47x = 47,474,024,170.13 - Step 5: Solve for x
x = 47,474,024,170.13/275,021.47 - Step 6: Final answer
x = 172,619.34
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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.