Finding the Fourth Proportional to 189,432.96, 261,409.60 and 104,548.80
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Solution
The fourth proportional to 189,432.96, 261,409.60 and 104,548.80 is: 144,272.99
Step by Step Solution
- Step 1: Write the proportion equation
189,432.96 : 261,409.60 = 104,548.80 : x - Step 2: Convert to fraction form
189,432.96/261,409.60 = 104,548.80/x - Step 3: Cross multiply
189,432.96x = 261,409.60 × 104,548.80 - Step 4: Simplify right side
189,432.96x = 27,330,059,988.48 - Step 5: Solve for x
x = 27,330,059,988.48/189,432.96 - Step 6: Final answer
x = 144,272.99
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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.