Finding the Fourth Proportional to 203,120.64, 280,286.92 and 121,432.74
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Solution
The fourth proportional to 203,120.64, 280,286.92 and 121,432.74 is: 167,565.49
Step by Step Solution
- Step 1: Write the proportion equation
203,120.64 : 280,286.92 = 121,432.74 : x - Step 2: Convert to fraction form
203,120.64/280,286.92 = 121,432.74/x - Step 3: Cross multiply
203,120.64x = 280,286.92 × 121,432.74 - Step 4: Simplify right side
203,120.64x = 34,036,008,681.76 - Step 5: Solve for x
x = 34,036,008,681.76/203,120.64 - Step 6: Final answer
x = 167,565.49
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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.