Finding the Fourth Proportional to 250,138.18, 345,194.49 and 136,971.46
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Solution
The fourth proportional to 250,138.18, 345,194.49 and 136,971.46 is: 189,022.70
Step by Step Solution
- Step 1: Write the proportion equation
250,138.18 : 345,194.49 = 136,971.46 : x - Step 2: Convert to fraction form
250,138.18/345,194.49 = 136,971.46/x - Step 3: Cross multiply
250,138.18x = 345,194.49 × 136,971.46 - Step 4: Simplify right side
250,138.18x = 47,281,793,279.26 - Step 5: Solve for x
x = 47,281,793,279.26/250,138.18 - Step 6: Final answer
x = 189,022.70
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1.5x scale
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.