Finding the Fourth Proportional to 276,249.08, 381,115.76 and 155,362.64
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Solution
The fourth proportional to 276,249.08, 381,115.76 and 155,362.64 is: 214,339.72
Step by Step Solution
- Step 1: Write the proportion equation
276,249.08 : 381,115.76 = 155,362.64 : x - Step 2: Convert to fraction form
276,249.08/381,115.76 = 155,362.64/x - Step 3: Cross multiply
276,249.08x = 381,115.76 × 155,362.64 - Step 4: Simplify right side
276,249.08x = 59,211,150,619.21 - Step 5: Solve for x
x = 59,211,150,619.21/276,249.08 - Step 6: Final answer
x = 214,339.72
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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.