Finding the Fourth Proportional to 393,723.75, 543,338.79 and 214,875.75
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Solution
The fourth proportional to 393,723.75, 543,338.79 and 214,875.75 is: 296,528.54
Step by Step Solution
- Step 1: Write the proportion equation
393,723.75 : 543,338.79 = 214,875.75 : x - Step 2: Convert to fraction form
393,723.75/543,338.79 = 214,875.75/x - Step 3: Cross multiply
393,723.75x = 543,338.79 × 214,875.75 - Step 4: Simplify right side
393,723.75x = 116,750,330,005.34 - Step 5: Solve for x
x = 116,750,330,005.34/393,723.75 - Step 6: Final answer
x = 296,528.54
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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.