Finding the Fourth Proportional to 198,216.84, 273,539.40 and 107,572.80
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Solution
The fourth proportional to 198,216.84, 273,539.40 and 107,572.80 is: 148,450.55
Step by Step Solution
- Step 1: Write the proportion equation
198,216.84 : 273,539.40 = 107,572.80 : x - Step 2: Convert to fraction form
198,216.84/273,539.40 = 107,572.80/x - Step 3: Cross multiply
198,216.84x = 273,539.40 × 107,572.80 - Step 4: Simplify right side
198,216.84x = 29,425,399,168.32 - Step 5: Solve for x
x = 29,425,399,168.32/198,216.84 - Step 6: Final answer
x = 148,450.55
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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.