Finding the Fourth Proportional to 197,765.64, 272,965.42 and 112,931.92
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Solution
The fourth proportional to 197,765.64, 272,965.42 and 112,931.92 is: 155,873.94
Step by Step Solution
- Step 1: Write the proportion equation
197,765.64 : 272,965.42 = 112,931.92 : x - Step 2: Convert to fraction form
197,765.64/272,965.42 = 112,931.92/x - Step 3: Cross multiply
197,765.64x = 272,965.42 × 112,931.92 - Step 4: Simplify right side
197,765.64x = 30,826,508,974.21 - Step 5: Solve for x
x = 30,826,508,974.21/197,765.64 - Step 6: Final answer
x = 155,873.94
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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.