Finding the Fourth Proportional to 274,543.97, 378,870.84 and 153,685.49
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Solution
The fourth proportional to 274,543.97, 378,870.84 and 153,685.49 is: 212,086.07
Step by Step Solution
- Step 1: Write the proportion equation
274,543.97 : 378,870.84 = 153,685.49 : x - Step 2: Convert to fraction form
274,543.97/378,870.84 = 153,685.49/x - Step 3: Cross multiply
274,543.97x = 378,870.84 × 153,685.49 - Step 4: Simplify right side
274,543.97x = 58,226,951,639.29 - Step 5: Solve for x
x = 58,226,951,639.29/274,543.97 - Step 6: Final answer
x = 212,086.07
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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.