Finding the Fourth Proportional to 419,694.81, 579,151.12 and 235,961.70
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Solution
The fourth proportional to 419,694.81, 579,151.12 and 235,961.70 is: 325,611.56
Step by Step Solution
- Step 1: Write the proportion equation
419,694.81 : 579,151.12 = 235,961.70 : x - Step 2: Convert to fraction form
419,694.81/579,151.12 = 235,961.70/x - Step 3: Cross multiply
419,694.81x = 579,151.12 × 235,961.70 - Step 4: Simplify right side
419,694.81x = 136,657,482,832.10 - Step 5: Solve for x
x = 136,657,482,832.10/419,694.81 - Step 6: Final answer
x = 325,611.56
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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.