Finding the Fourth Proportional to 276,186.41, 381,133.61 and 155,327.65
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Solution
The fourth proportional to 276,186.41, 381,133.61 and 155,327.65 is: 214,350.11
Step by Step Solution
- Step 1: Write the proportion equation
276,186.41 : 381,133.61 = 155,327.65 : x - Step 2: Convert to fraction form
276,186.41/381,133.61 = 155,327.65/x - Step 3: Cross multiply
276,186.41x = 381,133.61 × 155,327.65 - Step 4: Simplify right side
276,186.41x = 59,200,587,977.32 - Step 5: Solve for x
x = 59,200,587,977.32/276,186.41 - Step 6: Final answer
x = 214,350.11
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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.