Finding the Fourth Proportional to 276,614.84, 381,723.36 and 155,755.64
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Solution
The fourth proportional to 276,614.84, 381,723.36 and 155,755.64 is: 214,939.90
Step by Step Solution
- Step 1: Write the proportion equation
276,614.84 : 381,723.36 = 155,755.64 : x - Step 2: Convert to fraction form
276,614.84/381,723.36 = 155,755.64/x - Step 3: Cross multiply
276,614.84x = 381,723.36 × 155,755.64 - Step 4: Simplify right side
276,614.84x = 59,455,566,239.75 - Step 5: Solve for x
x = 59,455,566,239.75/276,614.84 - Step 6: Final answer
x = 214,939.90
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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.