Finding the Fourth Proportional to 170,439.80, 235,224.42 and 102,478.92
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Solution
The fourth proportional to 170,439.80, 235,224.42 and 102,478.92 is: 141,431.43
Step by Step Solution
- Step 1: Write the proportion equation
170,439.80 : 235,224.42 = 102,478.92 : x - Step 2: Convert to fraction form
170,439.80/235,224.42 = 102,478.92/x - Step 3: Cross multiply
170,439.80x = 235,224.42 × 102,478.92 - Step 4: Simplify right side
170,439.80x = 24,105,544,519.23 - Step 5: Solve for x
x = 24,105,544,519.23/170,439.80 - Step 6: Final answer
x = 141,431.43
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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.