Finding the Fourth Proportional to 316,183.68, 474,276.33 and 129,195.18
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Solution
The fourth proportional to 316,183.68, 474,276.33 and 129,195.18 is: 193,793.10
Step by Step Solution
- Step 1: Write the proportion equation
316,183.68 : 474,276.33 = 129,195.18 : x - Step 2: Convert to fraction form
316,183.68/474,276.33 = 129,195.18/x - Step 3: Cross multiply
316,183.68x = 474,276.33 × 129,195.18 - Step 4: Simplify right side
316,183.68x = 61,274,215,824.09 - Step 5: Solve for x
x = 61,274,215,824.09/316,183.68 - Step 6: Final answer
x = 193,793.10
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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.