Finding the Fourth Proportional to 198,447.49, 273,847.18 and 107,803.18
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Solution
The fourth proportional to 198,447.49, 273,847.18 and 107,803.18 is: 148,762.76
Step by Step Solution
- Step 1: Write the proportion equation
198,447.49 : 273,847.18 = 107,803.18 : x - Step 2: Convert to fraction form
198,447.49/273,847.18 = 107,803.18/x - Step 3: Cross multiply
198,447.49x = 273,847.18 × 107,803.18 - Step 4: Simplify right side
198,447.49x = 29,521,595,572.57 - Step 5: Solve for x
x = 29,521,595,572.57/198,447.49 - Step 6: Final answer
x = 148,762.76
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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.