Finding the Fourth Proportional to 198,454.99, 273,869.77 and 107,811.63
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Solution
The fourth proportional to 198,454.99, 273,869.77 and 107,811.63 is: 148,781.08
Step by Step Solution
- Step 1: Write the proportion equation
198,454.99 : 273,869.77 = 107,811.63 : x - Step 2: Convert to fraction form
198,454.99/273,869.77 = 107,811.63/x - Step 3: Cross multiply
198,454.99x = 273,869.77 × 107,811.63 - Step 4: Simplify right side
198,454.99x = 29,526,346,311.43 - Step 5: Solve for x
x = 29,526,346,311.43/198,454.99 - Step 6: Final answer
x = 148,781.08
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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.