Finding the Fourth Proportional to 189,458.24, 261,445.86 and 112,937.92
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Solution
The fourth proportional to 189,458.24, 261,445.86 and 112,937.92 is: 155,850.45
Step by Step Solution
- Step 1: Write the proportion equation
189,458.24 : 261,445.86 = 112,937.92 : x - Step 2: Convert to fraction form
189,458.24/261,445.86 = 112,937.92/x - Step 3: Cross multiply
189,458.24x = 261,445.86 × 112,937.92 - Step 4: Simplify right side
189,458.24x = 29,527,150,967.40 - Step 5: Solve for x
x = 29,527,150,967.40/189,458.24 - Step 6: Final answer
x = 155,850.45
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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.