Finding the Fourth Proportional to 198,220.59, 273,539.70 and 107,572.68
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Solution
The fourth proportional to 198,220.59, 273,539.70 and 107,572.68 is: 148,447.74
Step by Step Solution
- Step 1: Write the proportion equation
198,220.59 : 273,539.70 = 107,572.68 : x - Step 2: Convert to fraction form
198,220.59/273,539.70 = 107,572.68/x - Step 3: Cross multiply
198,220.59x = 273,539.70 × 107,572.68 - Step 4: Simplify right side
198,220.59x = 29,425,398,615.40 - Step 5: Solve for x
x = 29,425,398,615.40/198,220.59 - Step 6: Final answer
x = 148,447.74
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1.5x scale
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.