Finding the Fourth Proportional to 171,157.68, 256,522.68 and 82,387.62
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Solution
The fourth proportional to 171,157.68, 256,522.68 and 82,387.62 is: 123,478.50
Step by Step Solution
- Step 1: Write the proportion equation
171,157.68 : 256,522.68 = 82,387.62 : x - Step 2: Convert to fraction form
171,157.68/256,522.68 = 82,387.62/x - Step 3: Cross multiply
171,157.68x = 256,522.68 × 82,387.62 - Step 4: Simplify right side
171,157.68x = 21,134,293,081.22 - Step 5: Solve for x
x = 21,134,293,081.22/171,157.68 - Step 6: Final answer
x = 123,478.50
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1.5x scale
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.