Finding the Fourth Proportional to 171,715.28, 257,218.36 and 127,392.08
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Solution
The fourth proportional to 171,715.28, 257,218.36 and 127,392.08 is: 190,825.08
Step by Step Solution
- Step 1: Write the proportion equation
171,715.28 : 257,218.36 = 127,392.08 : x - Step 2: Convert to fraction form
171,715.28/257,218.36 = 127,392.08/x - Step 3: Cross multiply
171,715.28x = 257,218.36 × 127,392.08 - Step 4: Simplify right side
171,715.28x = 32,767,581,894.59 - Step 5: Solve for x
x = 32,767,581,894.59/171,715.28 - Step 6: Final answer
x = 190,825.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.