Finding the Fourth Proportional to 213,043.14, 319,260.11 and 156,439.17
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Solution
The fourth proportional to 213,043.14, 319,260.11 and 156,439.17 is: 234,435.08
Step by Step Solution
- Step 1: Write the proportion equation
213,043.14 : 319,260.11 = 156,439.17 : x - Step 2: Convert to fraction form
213,043.14/319,260.11 = 156,439.17/x - Step 3: Cross multiply
213,043.14x = 319,260.11 × 156,439.17 - Step 4: Simplify right side
213,043.14x = 49,944,785,840.31 - Step 5: Solve for x
x = 49,944,785,840.31/213,043.14 - Step 6: Final answer
x = 234,435.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.