Finding the Fourth Proportional to 313,559.34, 432,891.44 and 206,440.79
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Solution
The fourth proportional to 313,559.34, 432,891.44 and 206,440.79 is: 285,006.49
Step by Step Solution
- Step 1: Write the proportion equation
313,559.34 : 432,891.44 = 206,440.79 : x - Step 2: Convert to fraction form
313,559.34/432,891.44 = 206,440.79/x - Step 3: Cross multiply
313,559.34x = 432,891.44 × 206,440.79 - Step 4: Simplify right side
313,559.34x = 89,366,447,661.18 - Step 5: Solve for x
x = 89,366,447,661.18/313,559.34 - Step 6: Final answer
x = 285,006.49
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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.