Finding the Fourth Proportional to 305,543.14, 420,153.99 and 265,186.61
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Solution
The fourth proportional to 305,543.14, 420,153.99 and 265,186.61 is: 364,659.51
Step by Step Solution
- Step 1: Write the proportion equation
305,543.14 : 420,153.99 = 265,186.61 : x - Step 2: Convert to fraction form
305,543.14/420,153.99 = 265,186.61/x - Step 3: Cross multiply
305,543.14x = 420,153.99 × 265,186.61 - Step 4: Simplify right side
305,543.14x = 111,419,210,766.43 - Step 5: Solve for x
x = 111,419,210,766.43/305,543.14 - Step 6: Final answer
x = 364,659.51
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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.