Finding the Fourth Proportional to 186,956.39, 280,471.55 and 68,628.75
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Solution
The fourth proportional to 186,956.39, 280,471.55 and 68,628.75 is: 102,956.70
Step by Step Solution
- Step 1: Write the proportion equation
186,956.39 : 280,471.55 = 68,628.75 : x - Step 2: Convert to fraction form
186,956.39/280,471.55 = 68,628.75/x - Step 3: Cross multiply
186,956.39x = 280,471.55 × 68,628.75 - Step 4: Simplify right side
186,956.39x = 19,248,411,543.92 - Step 5: Solve for x
x = 19,248,411,543.92/186,956.39 - Step 6: Final answer
x = 102,956.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.