Finding the Fourth Proportional to 197,821.51, 272,993.73 and 107,178.10
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Solution
The fourth proportional to 197,821.51, 272,993.73 and 107,178.10 is: 147,905.80
Step by Step Solution
- Step 1: Write the proportion equation
197,821.51 : 272,993.73 = 107,178.10 : x - Step 2: Convert to fraction form
197,821.51/272,993.73 = 107,178.10/x - Step 3: Cross multiply
197,821.51x = 272,993.73 × 107,178.10 - Step 4: Simplify right side
197,821.51x = 29,258,949,293.31 - Step 5: Solve for x
x = 29,258,949,293.31/197,821.51 - Step 6: Final answer
x = 147,905.80
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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.