Finding the Fourth Proportional to 256,173.19, 353,517.64 and 148,769.62
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Solution
The fourth proportional to 256,173.19, 353,517.64 and 148,769.62 is: 205,301.28
Step by Step Solution
- Step 1: Write the proportion equation
256,173.19 : 353,517.64 = 148,769.62 : x - Step 2: Convert to fraction form
256,173.19/353,517.64 = 148,769.62/x - Step 3: Cross multiply
256,173.19x = 353,517.64 × 148,769.62 - Step 4: Simplify right side
256,173.19x = 52,592,684,966.10 - Step 5: Solve for x
x = 52,592,684,966.10/256,173.19 - Step 6: Final answer
x = 205,301.28
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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.