Finding the Fourth Proportional to 311,841.05, 430,407.41 and 197,046.81
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Solution
The fourth proportional to 311,841.05, 430,407.41 and 197,046.81 is: 271,966.78
Step by Step Solution
- Step 1: Write the proportion equation
311,841.05 : 430,407.41 = 197,046.81 : x - Step 2: Convert to fraction form
311,841.05/430,407.41 = 197,046.81/x - Step 3: Cross multiply
311,841.05x = 430,407.41 × 197,046.81 - Step 4: Simplify right side
311,841.05x = 84,810,406,155.63 - Step 5: Solve for x
x = 84,810,406,155.63/311,841.05 - Step 6: Final answer
x = 271,966.78
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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.