Finding the Fourth Proportional to 305,738.92, 421,958.62 and 184,881.08
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Solution
The fourth proportional to 305,738.92, 421,958.62 and 184,881.08 is: 255,159.41
Step by Step Solution
- Step 1: Write the proportion equation
305,738.92 : 421,958.62 = 184,881.08 : x - Step 2: Convert to fraction form
305,738.92/421,958.62 = 184,881.08/x - Step 3: Cross multiply
305,738.92x = 421,958.62 × 184,881.08 - Step 4: Simplify right side
305,738.92x = 78,012,162,346.71 - Step 5: Solve for x
x = 78,012,162,346.71/305,738.92 - Step 6: Final answer
x = 255,159.41
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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.