Finding the Fourth Proportional to 217,209.28, 299,757.18 and 126,623.68
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Solution
The fourth proportional to 217,209.28, 299,757.18 and 126,623.68 is: 174,745.56
Step by Step Solution
- Step 1: Write the proportion equation
217,209.28 : 299,757.18 = 126,623.68 : x - Step 2: Convert to fraction form
217,209.28/299,757.18 = 126,623.68/x - Step 3: Cross multiply
217,209.28x = 299,757.18 × 126,623.68 - Step 4: Simplify right side
217,209.28x = 37,956,357,238.02 - Step 5: Solve for x
x = 37,956,357,238.02/217,209.28 - Step 6: Final answer
x = 174,745.56
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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.