Finding the Fourth Proportional to 311,770.68, 430,020.28 and 202,671.51
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Solution
The fourth proportional to 311,770.68, 430,020.28 and 202,671.51 is: 279,541.55
Step by Step Solution
- Step 1: Write the proportion equation
311,770.68 : 430,020.28 = 202,671.51 : x - Step 2: Convert to fraction form
311,770.68/430,020.28 = 202,671.51/x - Step 3: Cross multiply
311,770.68x = 430,020.28 × 202,671.51 - Step 4: Simplify right side
311,770.68x = 87,152,859,478.22 - Step 5: Solve for x
x = 87,152,859,478.22/311,770.68 - Step 6: Final answer
x = 279,541.55
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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.