Finding the Fourth Proportional to 189,438.24, 261,519.39 and 117,841.26
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Solution
The fourth proportional to 189,438.24, 261,519.39 and 117,841.26 is: 162,679.80
Step by Step Solution
- Step 1: Write the proportion equation
189,438.24 : 261,519.39 = 117,841.26 : x - Step 2: Convert to fraction form
189,438.24/261,519.39 = 117,841.26/x - Step 3: Cross multiply
189,438.24x = 261,519.39 × 117,841.26 - Step 4: Simplify right side
189,438.24x = 30,817,774,432.03 - Step 5: Solve for x
x = 30,817,774,432.03/189,438.24 - Step 6: Final answer
x = 162,679.80
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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.