Finding the Fourth Proportional to 198,215.88, 273,539.93 and 107,572.62
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Solution
The fourth proportional to 198,215.88, 273,539.93 and 107,572.62 is: 148,451.31
Step by Step Solution
- Step 1: Write the proportion equation
198,215.88 : 273,539.93 = 107,572.62 : x - Step 2: Convert to fraction form
198,215.88/273,539.93 = 107,572.62/x - Step 3: Cross multiply
198,215.88x = 273,539.93 × 107,572.62 - Step 4: Simplify right side
198,215.88x = 29,425,406,406.85 - Step 5: Solve for x
x = 29,425,406,406.85/198,215.88 - Step 6: Final answer
x = 148,451.31
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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.