Finding the Fourth Proportional to 381,661.12, 526,671.79 and 211,884.31
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Solution
The fourth proportional to 381,661.12, 526,671.79 and 211,884.31 is: 292,388.94
Step by Step Solution
- Step 1: Write the proportion equation
381,661.12 : 526,671.79 = 211,884.31 : x - Step 2: Convert to fraction form
381,661.12/526,671.79 = 211,884.31/x - Step 3: Cross multiply
381,661.12x = 526,671.79 × 211,884.31 - Step 4: Simplify right side
381,661.12x = 111,593,488,820.62 - Step 5: Solve for x
x = 111,593,488,820.62/381,661.12 - Step 6: Final answer
x = 292,388.94
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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.