Finding the Fourth Proportional to 218,439.12, 327,776.40 and 92,166.88
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Solution
The fourth proportional to 218,439.12, 327,776.40 and 92,166.88 is: 138,299.99
Step by Step Solution
- Step 1: Write the proportion equation
218,439.12 : 327,776.40 = 92,166.88 : x - Step 2: Convert to fraction form
218,439.12/327,776.40 = 92,166.88/x - Step 3: Cross multiply
218,439.12x = 327,776.40 × 92,166.88 - Step 4: Simplify right side
218,439.12x = 30,210,128,125.63 - Step 5: Solve for x
x = 30,210,128,125.63/218,439.12 - Step 6: Final answer
x = 138,299.99
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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.