Finding the Fourth Proportional to 189,087.05, 260,953.04 and 115,530.98
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Solution
The fourth proportional to 189,087.05, 260,953.04 and 115,530.98 is: 159,440.63
Step by Step Solution
- Step 1: Write the proportion equation
189,087.05 : 260,953.04 = 115,530.98 : x - Step 2: Convert to fraction form
189,087.05/260,953.04 = 115,530.98/x - Step 3: Cross multiply
189,087.05x = 260,953.04 × 115,530.98 - Step 4: Simplify right side
189,087.05x = 30,148,159,429.24 - Step 5: Solve for x
x = 30,148,159,429.24/189,087.05 - Step 6: Final answer
x = 159,440.63
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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.