Finding the Fourth Proportional to 313,695.36, 432,902.19 and 170,455.41
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Solution
The fourth proportional to 313,695.36, 432,902.19 and 170,455.41 is: 235,229.87
Step by Step Solution
- Step 1: Write the proportion equation
313,695.36 : 432,902.19 = 170,455.41 : x - Step 2: Convert to fraction form
313,695.36/432,902.19 = 170,455.41/x - Step 3: Cross multiply
313,695.36x = 432,902.19 × 170,455.41 - Step 4: Simplify right side
313,695.36x = 73,790,518,761.04 - Step 5: Solve for x
x = 73,790,518,761.04/313,695.36 - Step 6: Final answer
x = 235,229.87
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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.