Finding the Fourth Proportional to 194,914.18, 292,170.39 and 74,938.60
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Solution
The fourth proportional to 194,914.18, 292,170.39 and 74,938.60 is: 112,330.67
Step by Step Solution
- Step 1: Write the proportion equation
194,914.18 : 292,170.39 = 74,938.60 : x - Step 2: Convert to fraction form
194,914.18/292,170.39 = 74,938.60/x - Step 3: Cross multiply
194,914.18x = 292,170.39 × 74,938.60 - Step 4: Simplify right side
194,914.18x = 21,894,839,988.05 - Step 5: Solve for x
x = 21,894,839,988.05/194,914.18 - Step 6: Final answer
x = 112,330.67
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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.