Finding the Fourth Proportional to 311,599.68, 430,039.68 and 190,821.12
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Solution
The fourth proportional to 311,599.68, 430,039.68 and 190,821.12 is: 263,352.82
Step by Step Solution
- Step 1: Write the proportion equation
311,599.68 : 430,039.68 = 190,821.12 : x - Step 2: Convert to fraction form
311,599.68/430,039.68 = 190,821.12/x - Step 3: Cross multiply
311,599.68x = 430,039.68 × 190,821.12 - Step 4: Simplify right side
311,599.68x = 82,060,653,382.04 - Step 5: Solve for x
x = 82,060,653,382.04/311,599.68 - Step 6: Final answer
x = 263,352.82
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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.