Finding the Fourth Proportional to 197,856.81, 273,047.42 and 121,418.12
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Solution
The fourth proportional to 197,856.81, 273,047.42 and 121,418.12 is: 167,560.09
Step by Step Solution
- Step 1: Write the proportion equation
197,856.81 : 273,047.42 = 121,418.12 : x - Step 2: Convert to fraction form
197,856.81/273,047.42 = 121,418.12/x - Step 3: Cross multiply
197,856.81x = 273,047.42 × 121,418.12 - Step 4: Simplify right side
197,856.81x = 33,152,904,482.78 - Step 5: Solve for x
x = 33,152,904,482.78/197,856.81 - Step 6: Final answer
x = 167,560.09
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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.