Finding the Fourth Proportional to 217,077.46, 299,713.17 and 135,529.99
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Solution
The fourth proportional to 217,077.46, 299,713.17 and 135,529.99 is: 187,122.71
Step by Step Solution
- Step 1: Write the proportion equation
217,077.46 : 299,713.17 = 135,529.99 : x - Step 2: Convert to fraction form
217,077.46/299,713.17 = 135,529.99/x - Step 3: Cross multiply
217,077.46x = 299,713.17 × 135,529.99 - Step 4: Simplify right side
217,077.46x = 40,620,122,932.97 - Step 5: Solve for x
x = 40,620,122,932.97/217,077.46 - Step 6: Final answer
x = 187,122.71
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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.