Finding the Fourth Proportional to 199,373.21, 275,134.21 and 108,728.95
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Solution
The fourth proportional to 199,373.21, 275,134.21 and 108,728.95 is: 150,045.50
Step by Step Solution
- Step 1: Write the proportion equation
199,373.21 : 275,134.21 = 108,728.95 : x - Step 2: Convert to fraction form
199,373.21/275,134.21 = 108,728.95/x - Step 3: Cross multiply
199,373.21x = 275,134.21 × 108,728.95 - Step 4: Simplify right side
199,373.21x = 29,915,053,762.38 - Step 5: Solve for x
x = 29,915,053,762.38/199,373.21 - Step 6: Final answer
x = 150,045.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.