Finding the Fourth Proportional to 197,431.08, 272,454.91 and 106,787.05
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Solution
The fourth proportional to 197,431.08, 272,454.91 and 106,787.05 is: 147,366.14
Step by Step Solution
- Step 1: Write the proportion equation
197,431.08 : 272,454.91 = 106,787.05 : x - Step 2: Convert to fraction form
197,431.08/272,454.91 = 106,787.05/x - Step 3: Cross multiply
197,431.08x = 272,454.91 × 106,787.05 - Step 4: Simplify right side
197,431.08x = 29,094,656,096.92 - Step 5: Solve for x
x = 29,094,656,096.92/197,431.08 - Step 6: Final answer
x = 147,366.14
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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.