Finding the Fourth Proportional to 217,180.24, 299,720.73 and 121,717.69
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Solution
The fourth proportional to 217,180.24, 299,720.73 and 121,717.69 is: 167,977.14
Step by Step Solution
- Step 1: Write the proportion equation
217,180.24 : 299,720.73 = 121,717.69 : x - Step 2: Convert to fraction form
217,180.24/299,720.73 = 121,717.69/x - Step 3: Cross multiply
217,180.24x = 299,720.73 × 121,717.69 - Step 4: Simplify right side
217,180.24x = 36,481,314,900.71 - Step 5: Solve for x
x = 36,481,314,900.71/217,180.24 - Step 6: Final answer
x = 167,977.14
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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.